Topic 1 & 2 grade 6

Which of the following changes demonstrates a chemical property? 

•      Substance combusts.

•       Substance floats in water

Which is the correct equation for calculating density?

•    Density = Mass | volume

•    Density=volume| Weight

Which of the following describes a physical change?

•       A marshmallow burns over on open flame.

•       Ice melts from a rooftop.

Label the image

•  Sublimation             

• Boiling  

Volume is a measure of the force of the gravity on an object.

• True

• false

Bananas on Jupiter weight more than twice weight on Earth.

• true

• false

Energy is the ability to do work and cause change.

• true

• false

 Charles’s Low is the relationship between pressure and volume at constant temperature.

• true

• false

1-      The amount of work you do depend on force you exert, and the distance.

     

• true

• false

What is the mass of a sample of a substance with a volume of 120 ml and density of 0.75 g|ml?

• 90 gram

• 70 gram

• 80 gram

• 100 gram