Question: Fact 1: Producing thrust causes something to move. Fact 2: Another way to move a spacecraft is to thrust with gas jets. Given the two facts above, what propels a spacecraft?
OPTIONS:
- sunlight
- energy
- friction
- photons
- heat
- moon
- thrust
- engine
Answer: thrust

Question: Fact 1: Amirror is used for reflecting light. Fact 2: Light enters the camera through the lens and is reflected upward by the mirror to the ground glass. Given the two facts above, what redirects light in a camera?
OPTIONS:
- cactuses
- microscope
- photons
- electricity
- The shutter
- A mirror
- A photo
- The film
Answer: A mirror

Question: Fact 1: Chemical weathering causes iron in rock to oxidize. Fact 2: Also pyrite within the altered wall rock is oxidized to limonite, geothite and hematite. Given the two facts above, chemical weathering causes what to change to limonite?
OPTIONS:
- pyrite
- growth
- Collagen
- fibrous
- cellulose
- soil
- cracks
- calcite
Answer:
pyrite