input: OPTIONS:
- Changing pressure
- Heat energy
- Water expanding
- Evaporation
- converting electricity to heat
- Increase in mass
- Temperature changing
- Chemical reaction Now, answer this question: Fact 1: Temperature changing can cause phase changes. Fact 2: Melting is the change of phase from a solid to a liquid. Given the two facts above, what can cause melting?
A:
output: Temperature changing

Fact 1: Sunlight and rain can cause a rainbow. Fact 2: Liquid precipitation is measured with a rain gauge. Given the two facts above, what can cause a rainbow?

OPTIONS:
- photosyntehsis
- tornadoes
- sun and hot weather
- snowfall and fog
- chemical messengers
- sun and liquid precipitation
- algae and plants
- photosynthetic pigments?

Answer: sun and liquid precipitation

Problem: OPTIONS:
- apples
- humans
- honey
- birds
- bees
- animal
- fruit
- children
Q: Fact 1: Nectar is used for attracting pollinators by plants. Fact 2: Pollinators: Bees are the primary pollinators of fennel. Given the two facts above, what do plants use nectar to attract?
Answer: bees

Problem:OPTIONS:
- down
- shade
- winter
- water
- sweat
- cold
- sleep
- skin

Fact 1: If an animal sweats then that animal 's bodily water decreases. Fact 2: When animals sweat, evaporation of the sweat takes away body heat, thus cooling the animal. Given the two facts above, how do organisms cool off?
****
A: sweat

Fact 1: Living things all require energy for survival. Fact 2: Food is the source of energy for living things. Given the two facts above, what do living things require?
OPTIONS:
- blood
- water
- lipids
- health
- oxygen
- food
- cells
- Sun
food

Fact 1: Earthworm burrows help aerate soil, which is also good for plants. Fact 2: Earthworms help soils breathe. Given the two facts above, what helps soil breathe?
OPTIONS:
- the circulatory system
- gasoline
- loose dirt
- temperature
- evaporation
- Exfoliation
- aeration
- bacteria

Answer:
aeration