Q: Fact 1: Dehydrating food is used for preserving food. Fact 2: Preservatives Preservatives are required to prevent spoilage. Given the two facts above, what can prevent food spoilage?

OPTIONS:
- prolactin release
- one celled organisms
- hydrating food
- cleaning food
- airing out food
- Electric generators
- a hydraulic system
- dehydrating food

A: dehydrating food

Q: Fact 1: Increasing heat causes thermal expansion. Fact 2: Heat is caused by molecules moving. Given the two facts above, what causes causes thermal expansion?

OPTIONS:
- molecules moving
- kinetic energy
- Electrical energy
- Evaporation
- molecules stopping
- sunlight
- molecules slowing down
- molecules standing still

A: molecules moving

Q: Fact 1: When electricity flows to a light bulb , the light bulb will turn on. Fact 2: Electricity is electrons in motion. Given the two facts above, what flows to a light bulb to turn it on?

OPTIONS:
- heat energy
- protons
- Solar energy
- neutrons
- direct energy
- energy
- electrons
- light switch

A: electrons

Q: Fact 1: Agraduated cylinder is used to measure volume of a liquid. Fact 2: Gasoline is an example of a liquid mixture. Given the two facts above, a graduated cylinder can be used to measure volume of?

OPTIONS:
- rain
- water vapor
- Bodily water
- Water
- blood
- solutes
- ocean water
- Gasoline

A:
Gasoline