Unit 6 Test

Helen takes some bread out of the oven. What reasoning tells why she uses oven mitts?

• Her hands will look better

• Her hands are cold.

• She wants to keep clean.

• She wants to protect her hands from the heat.

She wants to protect her hands from the heat.

Which produces the most heat?

• box moving against the ramp

• ramp sitting against the truck

• wind pushing against the box

• mover’s hands on the box

At a party, there are ice cream, balloons, and a cake with lit candles. Which most likely has the highest temperature?

• balloon

• bowl

• candle

• ice cream

        Mali sets a bowl of hot soup on a table. Which statement best describes what happens when she puts the spoon in the soup?

• The air’s temperature will decrease.

• The soup’s temperature will increase.

• The bowl’s temperature will increase.

• The spoon’s temperature will increase.

How do gloves protect people’s hands from friction?

• They prevent blisters.

• They keep hands clean.

• They keep germs off.

• They prevent scratches.

Juan has a beaker filled with ice and water. How will heat move to melt the ice?

• from the ice into the water

• from the water into the ice

• from the water into the air

• from the beaker into the air

At a party, there are ice cream, balloons, and a cake with candles. Which direction has the greatest heat movement?

• air to ice cream

• cake to candles

• balloon to air

• ice cream to air

Julie has a glass filled with ice and water. How could she make the ice melt more quickly?

• add more ice

• put a book under the glass

• put the glass under a lamp

• put the glass in a closet

Khalil’s family is cooking lunch on an outdoor grill. Which things are giving off heat?

• the coals and the air

• the food and the flames

• the grill and the food

•      the coals and the flames

Which action creates the most friction and heat?

• gently brushing face paint onto your cheeks

• rubbing your bare hands together numerous times

• rubbing your soapy hands together underwater

•             smoothing hand lotion onto the palms of your hands