Yr 8 Sci Unit 1 Pre-test

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

Freezing defined as when a substance changes from

• Solid to gas

• Liquid to solid

• Gas to solid

The state of matter that has no definite size or shape is

• Solid

• Liquid

• Gas

Tags

NGSS.MS-PS1-4

Particles of a liquid

• are tightly packed together and stay in a fixed position.

• are free to move around one another but still touch.

Tags

NGSS.MS-PS1-4

What is condensation?

• gas to solid

• gas to liquid

• liquid to solid

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which of these is a property of metals?

• It's malleable
• It can't conduct electricity
• They are used in food
• It's very brittle

Non-metals are good conductors of heat and electricity. 

• TRUE
• FALSE

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-3

What is the basic structural unit of matter

• atom

• matter

• element

• nucleus

The positively charged subatomic particle contained in the nucleus of an atom is

• a proton

• a neutron

• an electron

• orbital shell

CALCIUM

• C
• Ca
• Cu
• Cl

Tags

NGSS.MS-PS1-1