1What is model building?
2What is a collage? Give one example of something a collage could show.
3Give two examples of things that are hard to see directly, which a model could help us study.
4In the lung model, what does each part stand for: the small balloons, the bottle, and the large stretched balloon?
5Explain why air flows into the small balloons when the large balloon is pulled down.
6A student says the classroom solar system model is wrong because Mars is not really that close to the Sun. Is the student right?
7Name one thing the lung model shows well, and one thing it leaves out.
8Why must every part of a model be labelled clearly?