Matter and Energy

In electric ovens, the heat in the oven comes from the bottom when you bake something. However, cookies baking on the top shelf get done before cookies on the bottom shelf, even though the bottom shelf is closer to the heat source

• Solar Energy

• Conduction

• Convection

Tags

NGSS.MS-PS3-3

A teacher opens a window in her classroom, letting in air that is colder than the air inside the classroom.

What will happen to the colder air when it comes into contact with the warmer air in the classroom?

• The cold air will stay at the same height as the window, neither rising nor sinking.

• The cold air will sink toward the floor.

• The cold air will sink if it is much colder than the air around it; but if it is only a little colder than the air around it the cold air will not sink.

Tags

NGSS.MS-ESS2-5

Anything that takes up space and has mass is...

• Matter
• Work
• Power
• Newton's 1st Law

Tags

NGSS.MS-PS1-1

The amount of stuff in something, measured in kg

• Matter
• Mass
• Solubility
• Conductor

The classification of matter as a solid, liquid, or a gas.

• Matter
• Mass
• Physical State
• Thermal Energy

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Students place ice cubes outside on the ground, on a hot summer day. Which best describes how the ice cubes change over time?

• Gas to solid to liquid
• Liquid to gas to solid
• Solid to liquid to gas
• Solid to gas to liquid

Tags

NGSS.MS-PS1-4

What is happening at the boiling point?

• liquid to gas
• gas to liquid
• solid to liquid
• liquid to solid

Tags

NGSS.MS-PS1-4

Put the liquids in order from most dense to least dense?

• 4, 3, 2, 1
• 1, 2, 3, 4
• 3, 4, 2, 1, 
• 4, 3, 1, 2

Tags

NGSS.MS-PS1-2

At higher temperatures

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

Tags

NGSS.MS-PS1-4

The metal copper is there to:

• Provide a conductor for energy to flow from one place to another.
• Provide an insulator for energy to flow from one place to another.
• Provide an insulator to slow the flow of energy.
• Provide a conductor so slow the flow of energy.

Tags

NGSS.MS-PS3-5