Melting vs. Dissolving

Which of the following are examples of liquids?

• Wood and paper

• Shampoo and oil

• Shoes and socks

Tags

NGSS.5-PS1-3

I can be held in your hands. I don't change shape when you move me. What am I?

• A solid

• A liquid

• Neither a solid nor a liquid

Tags

NGSS.5-PS1-3

I cannot be picked up. I take the shape of any container. What am I?

• A solid

• A liquid

• Neither a solid nor a liquid

Tags

NGSS.MS-PS1-4

Sugar and sand can be poured. Are they examples of solids or liquids?

• Solids

• Liquids

• Neither

Tags

NGSS.5-PS1-3

When a solid is heated, it turns into a liquid. This is called...

• Dissolving

• Freezing

• Melting

Tags

NGSS.MS-PS1-4

When a liquid is cooled, it turns to a solid. This is called...

• Dissolving

• Freezing

• Melting

Tags

NGSS.MS-PS1-4

Ice melts at 0 degrees Celsius. Aluminum melts at 660 degrees Celsius. Which melts if left outside on a hot sunny day?

• Only the ice

• Only the aluminum

• Both would melt

Tags

NGSS.MS-PS1-4

Once a solid has turned to a liquid, can it be changed back to a solid again?

• No, it can never be turned back into a solid.

• Yes, by heating it.

• Yes, by cooling it.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Why does candle wax run down the sides of a candle?

• Because wax is always a liquid.

• Because the wax is trying to escape.

• Because the flame's heat turns the wax from a solid to a liquid.

Tags

NGSS.MS-PS1-4

How would you stop butter melting on a hot day?

• Leave it on the table.

• Put it in the oven.

• Put it in the refrigerator.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3