fact and question: when a gas in an open container evaporates, that gas spreads out into the air
Question: A balloon is filled with Helium, and then is opened and pressed up to someone's mouth to make a voice high, why does it do this?

What's the answer? OPTIONS:
- gas fills the new area
- gas easily is dispersed
- gas moves around freely
- gas is lighter than air

answer: gas fills the new area

fact and question: if all members of a species cannot produce offspring then that species will likely become extinct
Question: What happens when man moves into new environment but reproduction ceases to happen?

What's the answer? OPTIONS:
- native species go wild
- native species grow large
- native species loses dwindle
- native species thrive more

answer: native species loses dwindle

fact and question: coal mine is a source of coal under the ground
Question: Where's the best place to mine for coal?

What's the answer? OPTIONS:
- icebergs
- jewelry store
- lakes
- mountains

answer: mountains

fact and question: as dryness increases in an environment , the available water in that environment will decrease
Question: If a park becomes more and more arid, the animals there will probably

What's the answer? OPTIONS:
- start increasing in population
- have more food available
- have less to drink
- start becoming more friendly

answer:
have less to drink