6.2.2 States of Matter

A balloon will expand with hot energy and will contract (shrink) when placed in a refrigerator.

• An increase in temperature causes the particles to have greater energy and collide with greater force and if decrease the energy will be the opposite.

• A decrease in temperature causes the particles to change to a liquid.

• An increase in temperature causes a decrease in particle motion.

• A decrease in temperature causes the particles to have less energy and collide with greater force.

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NGSS.MS-PS1-4

NGSS.MS-PS3-5

A stone and an ice cube are approximately the same size; however, when placed in a glass of water, the stone sinks, and the ice floats. 

• The ice cube has a greater mass than the stone.
• The molecules in the ice cube are more closely packed together.
• The molecules in the stone are more closely packed together.
• The ice cube has a greater density than the stone.

Construct an explanation of the effect of heat energy on the arrangement of particles in states of matter. 

• In a solid, the molecules do not move.
• In a gas, the molecules are constantly in contact with each other.
• In a solid, atoms are closely spaced and may vibrate in position but do not change relative locations.

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NGSS.MS-PS1-4

NGSS.MS-PS3-4

What happens to the density of a substance when it is heated?

• It floats away.
• Density decreases.
• It bubbles.
• Density increases.

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NGSS.MS-PS1-4

What state of matter is represented here?

• liquid
• gas
• solid
• plasma

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NGSS.MS-PS1-4

How can we tell if an object has less density than water?

• It sinks.
• It floats.
• It is a liquid.
• It rusts.

Which box has a higher density?

• Box A
• Box B
• Cannot be determined
• They are the same

Which state of matter has particles arranged like this?

• solid
• liquid
• gas

Tags

NGSS.MS-PS1-4

What happens to the particles when I add heat?

• The particles get smaller
• The particles get bigger
• The particles get faster
• The particles get slower

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NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is one way matter change states?

• When heat is added
• Matter loses mass
• It doesn't change by doing nothing

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NGSS.MS-PS1-4