Q: Fact 1: Adoorbell converts electrical energy into sound. Fact 2: When the sound waves hit the eardrum in the middle ear, the eardrum starts to vibrate. Given the two facts above, when a doorbell rings, what part of the body vibrates? | OPTIONS:
- organ
- legs
- nerves
- arm
- cells
- eye
- eardrum
- Limbs
A: eardrum

Q: Fact 1: Coal is used to produce electricity by burning in coal-fire power stations. Fact 2: Solid refined coal is easy to transport and can be used in coal-burning equipment. Given the two facts above, solid materials used to produce electricity by burning in what need to be transported firs? | OPTIONS:
- Conifers
- animals
- it needs them
- humans
- heat energy
- important habitats
- power stations
- batteries
A: power stations

Q: Fact 1: Atoaster converts electrical energy into heat energy for toasting. Fact 2: Toast is born of bread. Given the two facts above, how is bread cooked with heat energy? | OPTIONS:
- evaporative cooling
- Movement of an air mass
- It's converted from electrical
- a hemisphere is tilted away from the sun
- Something made from fermented ricce
- heat production
- A transportation fuel
- heat is produced
A: It's converted from electrical

Q: Fact 1: If a habitat can no longer support animals then those animals will move to another area. Fact 2: Wildlife habitats contain food plots, shrubs and nut seedings for wildlife. Given the two facts above, when will animals move to another area? | OPTIONS:
- To keep their body heat.
- reusing materials
- If they can no longer get food
- If they are bored
- marshes and swamps
- If they have too much money
- Warm air moving into cold air
- If they have too much food
A: If they can no longer get food