Problem:OPTIONS:
- Lift
- bend
- bounce
- power
- move
- break
- motion
- speed

Fact 1: Pushing on the pedals of a bike cause that bike to move. Fact 2: Bike shoes allow a rider to pull during the whole pedal stroke. Given the two facts above, pushing with strokes on a bike cause that bike to what?
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A: move

Problem:OPTIONS:
- heating liquids
- energy of moving objects
- global warming
- insects to hatch
- sweating
- electricity
- Greenhouse gases
- kinetic energy

Fact 1: Heating an egg causes a chemical reaction in the egg. Fact 2: Insects hatch from eggs. Given the two facts above, heat causes?
****
A: insects to hatch

Problem:OPTIONS:
- four limbs
- exoskeleton
- warm
- scales
- sweating
- covering
- bareness
- opening

Fact 1: Thick fur can be used for keeping warm. Fact 2: Most mammals have hair, or fur, covering their body. Given the two facts above, most mammals have a body what for keeping warm?
****
A: covering

Problem:OPTIONS:
- density
- clouds
- embryos
- plants
- matter
- ferns
- humans
- batteries

Fact 1: Cells are the basic units of the structure and function of living things. Fact 2: Humans, angels, animals, and all other living things are finite. Given the two facts above, what are cells the basic units of?
****
A:
humans