Problem:OPTIONS:
- engines
- Hot water
- Burning wood
- Firecrackers
- sound
- Green beans
- cigarettes
- science

Fact 1: Fire converts chemical energy into light and heat energy. Fact 2: Wood can help Fire to burn. Given the two facts above, what can convert chemical energy into light and heat energy?
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A: Burning wood

Problem:OPTIONS:
- sharks
- trout
- pan
- toads
- Birds
- animals
- mammals
- Man

Fact 1: Fish have a circulatory system with a two-chambered heart. Fact 2: Fish species include salmon and trout. Given the two facts above, what has circulatory system with a two-chambered heart?
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A: trout

Problem:OPTIONS:
- seeds
- Echinoids
- a chime
- petals
- nectar
- hornets
- the queen bee
- courtship

Fact 1: Nectar is used for attracting pollinators by plants. Fact 2: Bees are the main pollinator. Given the two facts above, what attracts bees?
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A: nectar

Problem:OPTIONS:
- size
- energy
- kinetic energy
- Energy.
- heat energy
- shape
- properties
- friendship

Fact 1: If an object is made of a material then that object has the properties of that material. Fact 2: Metals are extremely versatile materials. Given the two facts above, if an object is made of metal, what does it always share of metal?
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A:
properties