Mystery Science- "Material Magic"

If it's really hot sunny outside, you probably want to wear clothes that are....

• waterproof

• heat-trapping

• see-through

• absorbent

Why are oven mitts NOT made out of metal?

• Metal lets the heat through to your hand.

• Metal is too expensive.

• Metal is too heavy.

• Metal isn't very comfortable.

Why do you need a metal pan to fry an egg on a hot sidewalk?

• The pan will keep the egg from getting dirty.

• The pan makes it easier to serve the egg.

• The pan conducts heat from the sidewalk.

• The pan absorbs heat from the sun.

What do popsicles and plastic toys have in common?

• Both of them can get very cold.

• Both of them are liquids.

• Both of them are made out of water.

• Both of them can be melted into shapes.

Why was it easier to make plastic toys instead of wooden toys?

• Plastic doesn't need to be carved by hand.

• Plastic doesn't grow in the ground.

• Plastic can be painted different colors.

• Plastic doesn't have bark that needs to be removed.

Scientists invent new materials so that....

• they can tell each other about them.

• invent things to solve problems.

• store the materials in their laboratories.

• do as many experiments as possible.

A ___________ can be built out of smaller pieces of _______.

• House.....wood

• Skyscraper...........concrete and steel

• Wall......brick

• All of the above

If you are designing winter boots, which material properties would you choose?

• waterproof

• soft

• see-through

• heat-trapping

• stiff

Why would you need a metal pan to fry an egg on a hot sidewalk? You need a metal pan to fry an egg because......

When it's cold, people wear clothing that is_________________.