1)
A scientist is conducting research to see whether dogs or cats are more popular. He goes to a dog park and asks all of the owners which pet they prefer. 100% of those polled stated that dogs are their favorite animal.
This experiment is an example of:
A) personal bias
B) experimental bias<<<
C) cultural bias
D) a controlled experiment
2)
What type of variable should there only be one of in an experiment?
A) dependent
B) independent<<<
C) control
D) responding
3)
You study for a test and you believe you'll get an A on the test. This is an example of:
A) conclusion
B) prediction<<<
C) inference
D) hypothesis
4)
What is the difference between mass and weight?
A) Mass measures the force of gravity and weight measures volume.
B) Mass is measured in metric units and weight is measured in US Standard System.
C) Mass measures amount of matter in an object and weight measures the force of gravity.<<<<<<<
D) Mass measures volume and weight measures the force of gravity.
5)
What is the independent variable in an experiment?
A) The variable that remains the same throughout the experiment.
B) The variable being tested in the experiment. <<<<<
C) The variable being measured in an experiment.
6)
A group of parts that work together is called a:
A) technology
B) system<<<<
C) process
D) feedback
7)
A scientific hypothesis must be:
A) correct
B) able to be manipulated
C) able to be controlled
D) able to be tested<<<<<
8)
What is an example of a qualitative observation?
A) red book <<<<<<
B) 100 mL
C) twenty cats
D) 50 km/hr
9)
Which example is NOT a model?
A) foam planets
B) plastic skeleton
C) atom made of fruit
D) skin cells<<<<<<
10)
An air conditioning unit turns off once it reaches its goal temperature. The house warms up and the air conditioning unit turns on again.
When the air conditioning unit turns on, it is an example of:
A) input<<<<<<
B) process
C) output
D) feedback
11)
Adam tested how music affects plant growth.
What is the dependent variable in the experiment?
A) type of bush
B) music
C) plant growth<<<<<
D) soil
12)
An example of International System of Measurement (SI) unit is:
A) pound<<<<<
B) mile
C) liter
D) ounce
13)
Trina walked into the kitchen and saw that the cake she'd put in the refrigerator the night before was gone. She said to herself "Dad must've eaten the cake when he got home last night."
Trina's statement can be classified as a(n):
A) observation
B) conclusion
C) hypothesis
D) inference<<<<<
14)
Why do scientists use the International System of Units (SI)?
A) because the SI is based on the metric system.
B) because the tools scientists use only measue in SI units.
C) so they can communicate their results without confusion.<<<<<
D) because the SI units are written in English.
15)
A student hypothesizes that a goldfish will be more active in a bowl that has red gravel than in a bowl with grey gravel. To test this hypothesis, the student places one goldfish in a bowl with red gravel and another goldfish in the same type of bowl with grey gravel.
What type of variable is the fish bowl?
A) control<<<<<
B) independent
C) manipulated
D) dependent
PLEASE CHECK MY ANSWERS
I KEEP GETTING A 10/15 AND I DON’T KNOW WHICH ONES ARE INCORRECT
it has to be rigged i keep getting 10/15 too
8th grade A scientist is conducting research to see whether dogs or cats are more popular. He goes to a dog park and asks all of the owners which pet they prefer. 100% of those polled stated that dogs are their favorite animal.
This experiment is an example of:
A) personal bias
B) experimental bias
C) cultural bias
D) a controlled experiment
2)
Trina walked into the kitchen and saw that the cake she'd put in the refrigerator the night before was gone. She said to herself "Dad must've eaten the cake when he got home last night."
Trina's statement can be classified as a(n):
A) observation
B) conclusion
C) hypothesis
D) inference
3)
What is the independent variable in an experiment?
A) The variable that remains the same throughout the experiment.
B) The variable being tested in the experiment.
C) The variable being measured in an experiment.
4)
A group of parts that work together is called a:
A) technology
B) system
C) process
D) feedback
5)
What is the difference between mass and weight?
A) Mass measures the force of gravity and weight measures volume.
B) Mass is measured in metric units and weight is measured in US Standard System.
C) Mass measures amount of matter in an object and weight measures the force of gravity.
D) Mass measures volume and weight measures the force of gravity.
6)
A student hypothesizes that a goldfish will be more active in a bowl that has red gravel than in a bowl with grey gravel. To test this hypothesis, the student places one goldfish in a bowl with red gravel and another goldfish in the same type of bowl with grey gravel.
What type of variable is the fish bowl?
A) control
B) independent
C) manipulated
D) dependent
7)
You study for a test and you believe you'll get an A on the test. This is an example of:
A) conclusion
B) prediction
C) inference
D) hypothesis
8)
An air conditioning unit turns off once it reaches its goal temperature. The house warms up and the air conditioning unit turns on again.
When the air conditioning unit turns on, it is an example of:
A) input
B) process
C) output
D) feedback
9)
Why do scientists use the International System of Units (SI)?
A) because the SI is based on the metric system.
B) because the tools scientists use only measue in SI units.
C) so they can communicate their results without confusion.
D) because the SI units are written in English.
10)
A scientific hypothesis must be:
A) correct
B) able to be manipulated
C) able to be controlled
D) able to be tested
11)
What type of variable should there only be one of in an experiment?
A) dependent
B) independent
C) control
D) responding
12)
An example of International System of Measurement (SI) unit is:
A) pound
B) mile
C) liter
D) ounce
13)
Adam tested how music affects plant growth.
What is the dependent variable in the experiment?
A) type of bush
B) music
C) plant growth
D) soil
14)
What is an example of a qualitative observation?
A) red book
B) 100 mL
C) twenty cats
D) 50 km/hr
15)
Which example is NOT a model?
A) foam planets
B) plastic skeleton
C) atom made of fruit
D) skin cells
hellpppp plss
Its not rigged and ik bc i just took it and got 14/15 and i was trying to share my answers but it wont let me review them sorry.
1) B) experimental bias - This experiment is an example of experimental bias because the scientist only went to a dog park and asked dog owners, leading to a biased sample of people who prefer dogs.
2) B) independent - The independent variable is the variable being tested or manipulated in the experiment. There should only be one independent variable.
3) B) prediction - Believing you will get an A on the test is a prediction, as it is an expectation about a future outcome.
4) C) Mass measures the amount of matter in an object, while weight measures the force of gravity acting on an object. Mass remains the same regardless of location, while weight changes depending on the strength of gravity.
5) B) The independent variable is the variable being tested or manipulated in the experiment. It is the variable that is intentionally changed by the researcher.
6) B) system - A group of parts that work together is called a system.
7) D) able to be tested - A scientific hypothesis must be able to be tested through experiments and observations.
8) A) red book - A qualitative observation is a description that does not involve numerical values or measurements.
9) D) skin cells - A model is a representation of something, usually used to help understand or explain a concept. Foam planets, plastic skeletons, and atoms made of fruits are all examples of models.
10) D) feedback - When the air conditioning unit turns on again in response to the warming of the house, it is an example of feedback. Feedback is a mechanism that allows a system to respond and adjust to changes in its environment.
11) C) plant growth - The dependent variable is the variable being measured or observed in the experiment. In this case, it is the plant growth that is being studied.
12) C) liter - The liter is the SI unit for volume.
13) D) inference - Trina's statement is an inference because she is drawing a conclusion based on her observation that the cake is missing.
14) C) so they can communicate their results without confusion - The SI units provide a standardized system of measurement that scientists use to communicate their results accurately and consistently.
15) A) control - The fish bowl in this experiment is serving as a control, as it is the standard condition against which the other conditions are compared.