Tuesday
July 26, 2016

Homework Help: Science

Branches of Science

Recent Science Questions

Math And Science for Young Children
After assessing your students, what question should you ask as you start organizing for teaching? A. What do my students know about this science topic? B. What is the appropriate science content that my students need to know? C. What do my students want to know about this ...
Saturday, January 9, 2016 by Tonya

Math And Science for Young Children
The process skill that is most appropriate for use with older children is:   A. observation. B. predicting. C. measuring. D. classifying. Is C the correct answer
Saturday, January 9, 2016 by Tonya

Math And Science for Young Children
Early childhood encompasses three of the four Piagetian stages. Which one of the stages is NOT reached during early childhood? A. Preoperational B. Concrete operational C. Sensorimotor D. Formal operations IS D the correct answer
Saturday, January 9, 2016 by Tonya

Math And Science for Young Children
__________ is/are NOT a basic lesson plan component. A. Object B. Concept C. Materials D. Goals Is B the correct answer
Saturday, January 9, 2016 by Tonya

Math and Science for young Children
Predictable student responses are likely during:   A. narrow questions. B. open-ended questions. C. initiating activities. D. observational skills. is B the right answer
Saturday, January 9, 2016 by Tonya

science
If the distance stays the same but they time increases what happens to the speed?
Saturday, January 9, 2016 by saad

science
An equation has carbon dioxide and water as its products, what type of reaction has taken place?
Saturday, January 9, 2016 by billy

Science
What is "spatial data" (or "geospatial data")? I am not sure, I think it either all or just A. Which one would you pick? A. Information that is tied to a specific location B. A dataset containing information about cities and populations C. Data that can be ...
Saturday, January 9, 2016 by Zara

Science
Why is the Grand Canyon a natural physical system
Saturday, January 9, 2016 by Chloe

science
What is the ionic strength of 0.2M Na2HPO4 in a solution?
Saturday, January 9, 2016 by Prashant

science
How far should be an undersea object/rock to hear theacho?Speed if sound in water is 1500m/s.
Saturday, January 9, 2016 by shivani

science
why is using a veterinarian's method of finding a dog's age better than x7 to human years.
Friday, January 8, 2016 by Anonymous

Science!!
How do you expect the water level to change when the apparatus is placed in warm water? In cool water?
Friday, January 8, 2016 by Lucia Vendales

Science
A man relaxes in his hot tub after a long day at work. hid ody temperature is 98.6 F. The temperature of the water in the hot tub is 102 F. How does heat transfer A) Heat does not transfer between his body and the water. B) Heat transfers to his body from the water by ...
Friday, January 8, 2016 by trololololololololol

Science
Ice at 0 degree celcuis is added to 200g of water initially at 70 degree celcuis in a vacuum flask.When 50g of ice has been added and has all melted the temperature of the flask and contents is 40 degree celcuis.When a further 80g of ice has been added and has all melted the ...
Friday, January 8, 2016 by David

Science
List events A-F shown in Figure 1-9 in the order that they occurred, beginning with the oldest event.
Friday, January 8, 2016 by Connections Help!!!!

Science
Give two reasons why so little is known about organisms from the Precambrian time, even though it was the longest period and early earth's history?
Friday, January 8, 2016 by Danielle

Children Development
In your words, describe nine learning experiences (activities) that cover each of the following areas: RC II-1 Science/Sensory RC II-2 Language and Literacy RC II-3 Creative Arts RC II-4 Fine Motor (Indoor Activity) RC II-5 Gross Motor (Outdoor Activity) RC II-6 Self Concept ...
Friday, January 8, 2016 by Anonymous

science
Explain why most refrigerators are painted in a white shiny colour
Friday, January 8, 2016 by Desmond

Science
What is the density / mass =26.7 g/volume =78.4 CM 3
Friday, January 8, 2016 by Anonymous

science and technology
whn a body hanging frm a spring balance is immersed in water it floats in water just below the surface of water & shows 100g loss in its weight 1-wht is thw weight of body in water? 2-wht is thw weight of body in air 3-wht is upthrust on the body? 4-wht is the vol. of body? ...
Friday, January 8, 2016 by raman

Pure maths, life science, business studies, and geograhy
What course can I do after high school if I have these subjects?
Friday, January 8, 2016 by Sindiswa

Science
How many litres of water are produced when 3.3 litres of hydrogen is burnt in excess of oxygen at 25degree centigrade?
Thursday, January 7, 2016 by Naveen

math and science both
my stuff needs an answer please
Thursday, January 7, 2016 by angie

science
what is the distance for a race car that travels around a 1 mile track like i dont even know and it kepps giving me displacement when its actually distance not displacement like bruh
Thursday, January 7, 2016 by angie

science please help anyone
I have a science project type of thing, I'm not asking for any answers. Just a breif and easier explanation on what to do, any help is appreciated. The length of a football field is 100 yards. When you compare geologic time (4.6 billion years) to the length of a football ...
Thursday, January 7, 2016 by river

SCIENCE
what is the difference between dew and frost
Thursday, January 7, 2016 by kiki

Science
For an experiment, you place 15 g of ice with a temperature of -10 C into a cup and label A. You also place 25 g of ice at the same temperature into another cup and label it B. Which of the following statements is true? A) The average kinetic energy of the ice in cup A is less...
Thursday, January 7, 2016 by I need help

Science
How is a parallel circuit different from a series circuit? A)a parallel circuit only has one path for the circuit to take. B)a parallel circuit has more than one path for the circuit to take. C) A parallel circuit has a broken path for the circuit to take. D) A parallel ...
Thursday, January 7, 2016 by Circuits.:(

maths history goagraphy naural science lo ca english affrikaans ems
must i not do phiscal sicence when i am doing those subjects at school
Thursday, January 7, 2016 by oratile

science
(c) Because static friction can adjust, the system can be at rest if the mass of block C is between some maximum value and some minimum value. What are these values if the coefficient of static friction between block B and the table is 0.200?
Wednesday, January 6, 2016 by xxxxxxx

Science
Imagine that the label on a sunscreen product reads, “Recommended by nine out of ten doctors.” No other information regarding this claim is provided. Why would a scientist tell a consumer to be wary of this statistical claim? A. Sunscreen products are ineffective. B...
Wednesday, January 6, 2016 by Joel

science
1. The skeletal system is created to ____________ internal organs. A) protect <------------------- B) maintain C) support D) hide 2. Your elbow and knee are examples of A) ligaments. B) joints. <-------------------- C) cartilage. D) angles. 3. The muscular system allows ...
Wednesday, January 6, 2016 by Anonymous

science
In the figure, blocks A and B have weights of 49 N and 32 N, respectively. Determine the minimum weight of block C to keep A from sliding, if the coefficient of static friction between A and the table is 0.20.
Wednesday, January 6, 2016 by xxxxxxx

science
To measure the static friction coefficient between a 1.7-kg block and a vertical wall, the setup shown in the drawing is used. A spring (spring constant = 416 N/m) is attached to the block. Someone pushes on the end of the spring in a direction perpendicular to the wall until ...
Wednesday, January 6, 2016 by xxxxxxx

Science
Assuming a force of 50 N is applied to each object by each contestant, what is the acceleration of object A?_ B?_C?_ ( Person A's object is 5.0kg, person B's object is 2.5kg and C's is 0.5kg
Wednesday, January 6, 2016 by Brianna

Science
In a closed Circuit, the current flows only from the power source to an electrical device such as a lamp. True * False
Wednesday, January 6, 2016 by Homie

Science
The approximate concentration of hydrochloric acid in the stomach(stomach acid) is 0.17m.calculate the mass of the following to neutralise 50cm of stomach acid.a)bicarbonate of soda b)aluminium hydro xide
Wednesday, January 6, 2016 by Rufinat

Science
Vinegar contain ethanoic acid.titration of 3.00g of vinegar with 0.12mol NaOH solution requires 23.0cm to reach the equivalence point.what is the weight percentage of the ethanoic acid in vinegar
Wednesday, January 6, 2016 by Rufinat

geography,maths literacy,life orientation,science
are they good and which job wil i be in or get?
Wednesday, January 6, 2016 by florie

Science
Current can be passed through salt solution but can not pass through sugar solution. Why? Answer in detail....
Wednesday, January 6, 2016 by Jenny

science
Financially,Canada would have benefited from keystone xl pipeline. What would have meant for individual Canadians? I know I have repeated the question from before but I need help urgently, since it's due tomorrow.
Tuesday, January 5, 2016 by tim

Algebra 1
A science teacher has supply of 50% methane solution and a supply of 80% methane solution.How much of each solution should the teacher mix together to get 105 mL of 60% methane solution for an experiment. a. 70 mL of the 50% solution and 35 mL of the 80% solution b. 35 mL of ...
Tuesday, January 5, 2016 by sierra.(@ MS.SUE PLEASE HELP)

Science:Biology
What are some unusual characteristics of food webs in agroecosystems?
Tuesday, January 5, 2016 by Christine

Science
The law of conservation of _____ states that all particles must be equal before and after the reaction. word bank:elements, magnitude matter,mass,stress ,gradual chemical,physical ,weight.
Tuesday, January 5, 2016 by scienceguy

science
Financially,Canada would have benefited from keystone xl pipeline. what would have meant for individual Canadians?
Tuesday, January 5, 2016 by tim

Algebra 1
What is the solution to the system? use elimination . -18.6x+ 17.2y=90.2 14.2x+ 3.4y= -35.8 a.(3,2) b.(-3,2) c.(2/3,4/9) d.(2,3) IS IT D?? Terry and ed start a lawn mowing business and purchase mowers and equipment for $800. They charge $20 for each lawn and $4 worth of gas ...
Tuesday, January 5, 2016 by makayla.

Algebra 1
A restaurant has one type of lemonade that has 12% sugar and another that is 7% sugar. How many gallons of each does the restaurant need to make 20 gallons of a lemonade mixture that is 10% sugar? a. 12 gallons of the 12% lemonade and 8 gallons of the 7% lemonade. b.10 gallons...
Tuesday, January 5, 2016 by rachel.

Science
Why does the design of the vacuum flask minimize heat transfer by conduction? A)One flask is smaller than the other flask. B)One flask is more reflective than the other flask. C)There is no air between the two flask. D)The two flask do not touch each other, except at the neck...
Tuesday, January 5, 2016 by I need help

Science
How much energy is needed to raise the temperature of 1500g of ice from -21.0 degrees Celsius to 113 degrees Celsius
Tuesday, January 5, 2016 by Bob

Science "check my "answers"
1. Which of the following statements best defines tides? (1 point) when waves get bigger because of an approaching storm the rise and fall of ocean water that occurs about every 12.5 hours the rise of ocean water that occurs 12 times a day a giant wave that can be extremely ...
Tuesday, January 5, 2016 by YRN DJ

Science Question
Can some1 give me mayb 1 or 2 examples of a HETEROGENEOUS mixture for my lesson?? Thank you!
Tuesday, January 5, 2016 by Saisir le Jour

Science
Which law of chemical is illustrated by the fact that 168g of iron with 72g of water to form 232g of ferric oxide And 8g hydrogen
Tuesday, January 5, 2016 by Sushmitha

science
I am wondering why H2S has only London Dispersion forces and not Hydrogen Bonding?
Monday, January 4, 2016 by David

Science
an airplane flies 800 km east and 600 in north. What is the total displacement (with approximate direction)? What is the total distance traveled?
Monday, January 4, 2016 by Jaylah

Science
What is the density of a solid aluminum with a mass of 60g
Monday, January 4, 2016 by Amanda

Science
This has already been posted, however the provided answer does not make sense. Anyone have additional insight for this one? An excess of aluminum metal is added to 200.0 mL of 0.025 M solution of CuCl2, reducing the Cu+2 ions to metallic Cu. If the temperature of the solution ...
Monday, January 4, 2016 by Chem Help

Math
The science test grades are posted. All students taking the test scored over 75. Unfortunately, 4 students were absent for the test and the computer listed their scores as 0 until the test is taken. Assuming that no score repeated more times than the 0's, what measure of ...
Monday, January 4, 2016 by Vstar

Science -- Check my Answer Plz (again)
A beaker contains 50.0 mL of water at 90.0°C. How many calories must be added to raise the temperature of the water to its boiling point (100°C)? A) 50.0 cal B) 1.00*10^3 C) 100.0 cal D) 5.00*10^2 I think the answer is B, but i also think im wrong...
Monday, January 4, 2016 by Saisir le Jour

Science -- Check my Answer Plz
How much heat (calories) must be applied to a 100 mL beaker filled with boiling water in order to vaporize the water? ** A) 540 cal ** B) 540 * 10^4 cal C) 800 cal D) 8000 cal Is A correct? or cud it be B.?
Monday, January 4, 2016 by Saisir le Jour

Science -- Explaination on Heat Capacity?
I need some1 to explain heat capacity to me because the way my lesson is teaching it is EXTREMELY confusing!! A simple explanation would be nice! Dumb it down 4 a 7th grader!!!!! If you could use the following question in the explanation, that would be great because this is y ...
Monday, January 4, 2016 by Sairsir le Jour

PLZ Check my Science Project's summary?!
The following r the instructions to my Project: - Compose a scientific summary of your method, observations, data, and conclusions. In addition, be sure to answer the questions below in your report. 1. Why does the first method for determining volume work only for a regular-...
Monday, January 4, 2016 by Natasha

Science Project Help
Hello, My science project is asking me to "compose a scientific summary of your method, observations, data, and conclusions" on determining the volume of both regular & irregular objects. They wanted me to answer the 4 questions below in my summary: 1. Why does the ...
Monday, January 4, 2016 by NAtasha

Science
1.Which type of eclipse would you expect to see if the moon passes directly between Earth and the sun? -a solar eclipse -a lunar eclipse -a total lunar eclipse -a penumbra 2.Which of the following statements about a lunar eclipse is true? -A lunar eclipse can occur when the ...
Monday, January 4, 2016 by YRN DJ

Science
13.5g aluminium changes to Al^3+ in solution by loosing ..... electrons.
Monday, January 4, 2016 by Chemistry question

Science
1 mole of chlorine combines with a certain weight of a metal giving 111g of its chloride. The atomic weight of the metal (assuming its valency to be 2) is-
Monday, January 4, 2016 by Chemistry question

Science
How are temperature and thermal energy related A) Temperature and thermal energy both measure the total kinetic energy in an object. B) Temperature is one factor that determines the thermal energy of an object C) Thermal energy is one factor that determines the temperature of ...
Monday, January 4, 2016 by trololololololololol

social science
why is the amazon basin ecologically so important
Monday, January 4, 2016 by kavish

Science
Resistance of tungsten wire is higher when it is hot and lower when it is cold this is because the temperature is
Monday, January 4, 2016 by Mox

Science (Mrs.sue please help)
For your discussion assessment, you will present your proposal of a device that minimizes heat transfer So basically, an insulator. right? i uh... dont get what this questions asking... 0n0 help?
Sunday, January 3, 2016 by Yuno Gasai

Science (correct?)
(1) which of the following correctly identifies the methods of heat transfer? 1. A- convention B- radiaton C- conduction ~~~~~~~~~~~~~ 2. A- conduction B- radiaton C- convention ~~~~~~~~~~~~~ 3. A- convention B- conduction C- radiaton ~~~~~~~~~~~~~ 4. A- radiaton B- convention...
Sunday, January 3, 2016 by Yuno Gasai

Science
The description of the structure of the atom is called the _____ thanks
Sunday, January 3, 2016 by DEEZ GOT HEE

Science
1.The images above show particles in a medium. Which of the following shows the worst conditions for a sound wave to travel? A B C D 2.Which of the following correctly describes a radio wave? A.long wavelength and high frequency B.long wavelength and low frequency C.short ...
Sunday, January 3, 2016 by XDKitty~

Life science, history, accounting
I chose these subjects for grade 10, but I don't know what I'm going to do with them when I reach university or what career I could have with these subjects. Please help.
Sunday, January 3, 2016 by Seipelo

material science
What is the different between material science and material engineering?
Sunday, January 3, 2016 by mohammed umaru

Science
An airplane's speed in still air is 240 km/h. (a) If the pilot wishes the resultant motion of the plane to be due north when a 60 km/h wind is blowing the plane due east, in what direction should the plane be headed? (b) What will then be the resultant speed of the ...
Sunday, January 3, 2016 by Adelinne

Science Fair
I just wanted to ask if this project written below is a High School Project... (Up,up,away in your own hot air ballon) This is the project name and also I don't need a link to this project, I have it already... Just tell me whether it is a high school project or not..
Saturday, January 2, 2016 by Tisy

science
Which has more entropy neon or methane
Saturday, January 2, 2016 by jyoti

Physics-science
A block of wood has a mass of 3.6kg and specific gravity of 0.6. It is to be loaded with lead of density of 11300 kg per cubic metre so that it floats in water with 0.90 of its volume immersed. What mass of lead is needed? (a) if the lead is on top of the wood? (b) if the lead...
Saturday, January 2, 2016 by KAZIN BONNY

Science
Why Is it important to include units with your temperature measurements
Friday, January 1, 2016 by Anthonae

science
what is the boiling point of 3.77m sucrose
Friday, January 1, 2016 by vyankatesh kshatriya

science
why tne unit of pd and emf is same
Friday, January 1, 2016 by diwas

science
The work done by 500 calories of heat in isothermal expansion of ideal gas is?
Thursday, December 31, 2015 by priya

Science
The difference between the speed of sound in air at 0 degrees Celsius and the speed of sound in air at 20 degrees Celsius is that A) cooler air molecules move more slowly and respond less readily to the energy of a sound wave B) cooler air molecules move more quickly and ...
Thursday, December 31, 2015 by Need Urgent Help Please

Science
Which type of attractive forces do you expect between HCl3,HF,HCL?
Thursday, December 31, 2015 by Ghufran ali

science and technology
calculate the work done if a force of 80N is applied to a ball to move it to a distance of 24m.
Thursday, December 31, 2015 by yakubu shehu

Science - Chemistry
If vapour pressure of water is 17.5 torr at 20C, what is the water vapour pressure inside a bottle of 100 proof whiskey? 100 proof = 50% ethanol Total volume = 1 L Mass of ethanol = 394.5g Mass of water = 500g Density of ethanol = 0.789g/mL Moles of ethanol = 8.58 mol Moles of...
Wednesday, December 30, 2015 by Sara

science,physics
Jesse Rose walks along a footpath for 6 minutes.She then cuts across a field, which takes a further 4 minutes.She walks a total distance of 900m. what is her average speed? could you please explain this step by step.
Wednesday, December 30, 2015 by ANGELINA JONES

science,physics
i do not understand this question and by the way this is not my homework. Reggie sets out from home on his bicycle.First he goes to the shop, which is 500 m away, he then rides to his friend's house which is a further 1200m.He then returns home. what total distance has ...
Wednesday, December 30, 2015 by sara

Science
How are modern items made to look like ancient artifacts? (This is about radioactive decay and dating.)
Wednesday, December 30, 2015 by Anonymous

Science
What types of artifacts can accelerator mass spectrometry be used to date, other than wood, paper, and bread?
Wednesday, December 30, 2015 by Anonymous

Science
A train starts from rest with an accelaration of 0.5 m/s (square) find its speed in km/h when it has moved throug 100m
Tuesday, December 29, 2015 by Farid

Math/Science
Calculate the minimum change in velocity (delta V or ∆V) required for the Space Shuttle to decrease its altitude to 60 miles if it’s orbiting with an apogee of 260 miles and a perigee of 220 miles above the surface of Earth.
Tuesday, December 29, 2015 by Lane

Chemistry
An experiment calls for 100ml of 0.1M copper(II) sulfate solution. Write a step-by-step procedure for a science teacher to make 100ml of 5M stock solution and the required diluted solution.
Tuesday, December 29, 2015 by Esther

Computer science
Score 1,Score 2 and Score 3 are the marks scored by a student in three tests. Write a pseudocode,an algorithm and draw the flowchart to find the average of best two scores.
Tuesday, December 29, 2015 by Bettlyn

science
what is computer?
Tuesday, December 29, 2015 by beshwar mandal

science
Your bedroom gets direct sunlight through a window during the hottest times of the day. You ask your mom to turn down the thermostat in the house so your room can cool dow. Instead, your mom suggests that you put aluminum foil over the window. What will the results be if you ...
Monday, December 28, 2015 by ?

Science
Which of the following is an example of heat transfer by radiation? A. Wind currents B. a pot of water boiling on the stove C. a bare foot on a hot sidewalk D. a microwave oven heating food I think B? Not sure?
Monday, December 28, 2015 by Amber

Science
Which of the following correctcly identifies the methods of heat transfer?
Monday, December 28, 2015 by ?

life orientiaton,history,geography,life science
What careers can I do with this subjects
Monday, December 28, 2015 by sibusiso

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