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March 23, 2017

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Posted by on Tuesday, March 4, 2014 at 12:48pm.

1.
What would happen to an object if the force of gravity on Earth was decreased by half? (1 point)
Its mass would decrease.
Its weight would decrease.*
Its density would decrease.
Its volume would decrease.
2.
Which of the following represents a heterogeneous mixture? (1 point)
saltwater
air
bleach and water
chicken noodle soup*
4.
A certain object has a volume of 25.0 mL and a mass of 100 g. What is the density of the object? (1 point)
0.250 g/mL
4.00 g/mL*
125 g/mL
2500 g/mL
5.
Which of the following is a chemical property of aluminum? (1 point)
The melting point of aluminum is 660°C.
The boiling point of aluminum is 2519°C.*
Aluminum does not dissolve in water.
Aluminum reacts with oxygen.
6.
Table salt has the chemical formula NaCl. Table sugar has the chemical formula C12H22O11. Which of the following is true? (1 point)
Both compounds are held together by chemical bonds.
Both compounds have the same density.
Both compounds react with water.
Both compounds contain the element carbon.*
7.
Kelly needs to separate a mixture of sand and sawdust. She tried using tweezers to pick out the pieces of sawdust, but that didn’t work. Her grandfather suggested she use water. How will water help Kelly separate the mixture? (1 point)
The sand will dissolve in water, but the sawdust will not.
The sand will react with water, but the sawdust will not.
The sand will sink in water, but the sawdust will float in water.*
The sand will float in water, but the sawdust will sink in water.
8.
Which of the following is a pure substance? Choose all that apply. (2 points)
fruit juice
nickel (Ni)*
saltwater
rust *
9.
A student combined water, sugar, and salt in a beaker. Which of the following statements is true? (1 point)
The individual substances can be separated by physical means.
The individual substances cannot be separated by physical means.*
A new substance is made of two or more elements chemically combined.
A new substance is made containing atoms that have been rearranged.
10.
A mixture of sugar and water can be separated by _________________. Choose all that apply. (2 points)
using a magnet
boiling the mixture
evaporating the mixture*
using a filter*

  • Science - , Tuesday, March 4, 2014 at 12:49pm

    Will you check my Anwers please?

  • Science - , Monday, April 13, 2015 at 11:27am

    I am not sure because I am trying to check the same quiz :(((

  • Science - , Monday, April 13, 2015 at 11:30am

    Umm may I ask Daniel Brown if you are in Commonwealth Connection Academy?

  • Science - , Tuesday, April 14, 2015 at 10:51am

    ii am michelle

  • Science - , Wednesday, September 9, 2015 at 4:41pm

    Fitchy Ma!

  • Science - , Wednesday, September 23, 2015 at 10:58am

    But does anyone have the answer?

  • Science - , Wednesday, January 13, 2016 at 6:00pm

    1 is b
    2 is d
    3 is c
    4 is b
    5 is d
    6 is a
    7 is c
    8 is b and d
    9 is a
    10 is b and c. I know because I did it and I got a 100%.

  • Science - , Thursday, January 14, 2016 at 10:37am

    YES U R RIGHT! THANKS

  • Science - , Thursday, January 14, 2016 at 10:38am

    tf ur in my class jeremiah

  • Science - , Friday, February 19, 2016 at 10:46am

    Jerimiah is right i got a 100 percent. Thank you. i knew the answers i just needed to check them (:

  • Science - , Wednesday, March 2, 2016 at 8:50am

    Jeremiah is right thanks dude!

  • Science - , Wednesday, March 30, 2016 at 4:25pm

    Shes right :D

  • Science - , Tuesday, March 21, 2017 at 2:39pm

    1 is b
    2 is d
    3 is c
    4 is b
    5 is d
    6 is a
    7 is c
    8 is b and d
    9 is a
    10 is b and c. I know because I did it and I got a 100%. lol best statement ever thanks btw

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