PS.5.1.3 Quiz/Post Assessment

Eric noticed that when he put ice in his glass of water, the ice floated. Which best explains why this happens?

• When water freezes it contracts, making the ice lighter than the water.

• When water freezes the particles break down, making the ice lighter than water.

• When the water freezes, it turns into a solid, and all solids are lighter than liquids.

• When the water freezes it expands, making it a less dense mass that is lighter than water.

A student is investigating the effect of sunlight on water. The steps of her investigation are shown. step 1: fill two glasses with the same amount of tap water step 2: place a thermometer in each glass step 3: ? step 4: let the glasses sit for six hours step 5: record the temperature of each glass of water What should the student do at step 3?

• Put both glasses in a sunny location.

• Put both glasses in the same spot in her kitchen.

• Put one glass in her kitchen and one glass in a closet.

• Put one glass in the sun and one glass in the shade.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Carl places an ice cube in the bottom of two different frying pans and places the pans on a countertop. The ice cube in Pan 1 melts quicker than the ice cube in Pan 2. Which statement best explains what caused the ice cube in Pan 1 to melt quicker?

• Pan 2 is older than Pan 1.

• Pan 2 has a thicker handle than Pan 1.

• Pan 1 has a rubber handle that blocks heat.

• Pan 1 is made of a metal that more easily allows heat to pass through.

Tags

NGSS.MS-PS3-3

NGSS.MS-PS1-4

Why does a flannel blanket provide warmth to a person on a cold night?

• The blanket is a conductor of heat, so it warms the person’s body.

• The blanket is unable to remain cool, so it warms the person’s body.

• The blanket is warmer than the air in the room, so it warms the person’s body.

• The blanket acts as an insulator, slowing the rate at which a person’s body loses heat.

Tags

NGSS.MS-PS3-3

Polar bears have dark skin underneath their fur. Which best explains why having dark skin is beneficial for polar bears?

• Dark skin radiates heat.

• Dark skin conducts cold air.

• Dark skin freezes in the cold environment.

• Dark skin absorbs heat radiated from the sun.

Tags

NGSS.MS-LS4-4

Which is the best material to wrap vegetables in for cooking on a grill?

• Plastic, because it allows heat to flow easily.

• Paper, because it prevents heat from flowing easily.

• Wood, because it prevents heat from flowing easily.

• Aluminum foil, because it allows heat to flow easily.

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

How does an oven mitt help when removing a pan from the oven?

• An oven mitt heats up slowly and increases the amount of heat from the pan that reaches the hand.

• An oven mitt heats up slowly and decreases the amount of heat from the pan that reaches the hand.

• An oven mitt heats up quickly and increases the amount of heat from the pan that reaches the hand.

• An oven mitt heats up quickly and decreases the amount of heat from the pan that reaches the hand.

Tags

NGSS.MS-PS3-3

Jennifer placed an ice cube on a metal tray and a plastic tray that were both the same temperature. She thinks that the ice cube on the metal tray will melt faster than the ice cube on the plastic tray. Is she correct?

• Yes, she is correct because the metal tray will conduct heat into the ice cube more quickly than the plastic tray.

• Yes, she is correct because the metal tray will conduct the cold away from the ice cube more quickly than the plastic tray.

• No, she is incorrect because the plastic tray will conduct heat into the ice cube more quickly than the metal tray.

• No, she is incorrect because the metal tray will conduct the cold away from the ice cube more quickly than the plastic tray.

Tags

NGSS.MS-PS3-3

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which are examples of conductors?

• silver and glass

• glass and rubber

• rubber and silver

• silver and copper

Sam noticed that the spaces between the wood boards on his deck were smaller in the winter than in the summer. Which best explains how these spaces protect the deck?

• The spaces allow expanding and contracting of the wood when heated and cooled.

• The spaces allow food and garbage to fall through the wood, preventing stains.

• The spaces allow for a better appearance of the wood, making it more stylish.

• The spaces allow further growth of the wood to occur without bending.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4