Matter and Change (Review)

At higher temperatures

• particles in an object have less energy
• particles in an object move faster
• a gas contracts

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

A gas

• has a definite shape but no definite volume

• has a definite volume but no definite shape

• has no definite volume and no definite shape

Which example is a compound?

• N₂

• O₂

• Cu

• H₂O₂

Tags

NGSS.MS-PS1-1

Two or more atoms joined together forms a(n)...

• Element

• Compound

• Molecule

• Mixture

A combination of substances that are not chemically combined is called a(n)____________. 

• mixture
• compound
• physical

Shape is a ____ that helps identify an object.

• physical property
• chemical property
• mass
• matter

Tags

NGSS.5-PS1-3

A watermelon has more matter than a grape, so it has more

• mass
• eat
• solid
• greater

An example of a physical property is 

• flammability
• acidic
• color
• ability to rust

Which of the following is observed here?

• A physical change because you have the same types of atoms

• A physical change because you are just breaking the atoms up

• A chemical change because you are forming a new substance

• A chemical change because atoms are involved

A block of metal has a mass of 14.0 Kg and a volume of 2.0 Liters what is the density?

• 14.0 kg/L 
• 7.0 Kg/L
• 2.0 Kg/L 
• 0.5 Kg/l