Energy & Matter Review

Students  observe a bowl of ice cream during an experiment. After a few minutes, the solid ice cream begins changing into a liquid. What most likely causes this change?

• The temperature of the ice cream increases.
• The temperature of the ice cream decreases.
• The temperature of the ice cream stays the same.
• The temperature of the ice cream increases and then decreases.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Students  observe a bowl of ice cream during an experiment. After a few minutes, the solid ice cream begins changing into a liquid. What most likely causes this change?

• The temperature of the ice cream increases.
• The temperature of the ice cream decreases.
• The temperature of the ice cream stays the same.
• The temperature of the ice cream increases and then decreases.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

The directions to make cherry gelatin are shown below. 
1. Boil 1 cup water and pour into a bowl
2. Empty the contents of gelatin into the bowl
3. Stir until dissolved
4. Place bowl in refrigerator for a few hours
During which step in thee recipe will a liquid change into a gas?

• Step 1
• Step 2
• Step 3
• Step 4

Tags

NGSS.MS-PS1-4

All of the examples below show a change in the state of matter caused by heating EXCEPT -

• A piece of chocolate softens in the sun.
• A puddle of water evaporates.
• Water turns into an ice cube.
• Water turns into water vapor.

Tags

NGSS.MS-PS1-4

A student left a glass of water outside in the cold. The the glass of water stays overnight, what will happen to the glass of water?

• The water will change from liquid to a solid.

• The water will change from a liquid to a gas.

• The water will not change

• The water will evaporate.

Tags

NGSS.MS-PS1-4

Sometimes people add sugar to their tea. Which property of the sugar remains the same when the sugar is in the tea solution?

• The taste of the sugar

• The size of the sugar crystals

• The color of the sugar

• The texture of the sugar

A teacher wears protective gloves to lift a metal pan filled with boiling water from a hot plate. Why are the protective gloves necessary?

• The metal pan creates thermal energy.

• the metal pan insulates thermal energy.

• The metal pan conducts thermal energy.

• The metal pan reduces thermal energy.

Tags

NGSS.MS-PS3-5

The chart below shows objects that conduct heat and objects that insulate heat. Which answer choice best completes the chart?

• Glass block

• Gold ring

• Plastic spoon

• None of the above

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

• The metal can holds colder juice than the plastic bottle.
• Plastic is a better conductor of thermal energy than metal. 
• Metal is a better conductor of thermal energy than plastic. 
• The outside of the metal can is drier than the plastic bottle. 

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

How to separate the jelly beans?

• Filtration method

• Sieving method

• Hand-picking method

• Floatation method