Question: Fact 1: Water causes refraction of light. Fact 2: Water is a compound of hydrogen and oxygen. Given the two facts above, what causes a refraction of light?
OPTIONS:
- compound of hydrogen oxygen
- focusing a lens
- that material's properties
- photosynthetic pigments?
- oxidation reaction
- a hemisphere is tilted away from the sun
- sunlight beams
- solid, liquid, gas
Answer: compound of hydrogen oxygen

Question: Fact 1: Hitting an object causes the particles in that object to vibrate. Fact 2: Electrical particles in materials vibrate and accelerate. Given the two facts above, what moves electrical particles in an object ?
OPTIONS:
- hitting
- waves
- beating
- wind
- messengers
- a doorbell
- heat
- tapping
Answer: hitting

Question: Fact 1: Lungs are used for breathing air by land animals. Fact 2: African Elephants are the biggest land animals. Given the two facts above, how do african elephants breathe?
OPTIONS:
- with ears
- with skin
- survive
- four limbs
- with lungs
- Pituitary gland
- with tusk
- Heart rate
Answer:
with lungs