5.5A DOL 12/1

The following items are placed in a bucket. Which will demonstrate the lowest density when the bucket is filled with water?

• hammer

• wooden block

• penny

• spoon

Lisa pours the same amount of salt, sugar, sand, and cinnamon into 4 separate graduated cylinders. Each have 75 ml of water. Which question is she most likely trying to answer with this investigation?

• What causes a substance to sink when put in water?

• Which substances dissolve in water?

• At what water temperature do the substances dissolve?

• How much water is needed to cause a substance to change state?

A father wears protective gloves to pull a metal pan out of the oven. Why are the protective gloves necessary?

• The metal pan insulates thermal energy.

• The metal pan creates thermal energy.

• The metal pan conducts thermal energy.

• The metal pan reduces thermal energy.