Question

write the correct answers.
8.1) a(n) ________ is a special type of descriptive investigation that shows how something works or what something looks like.
8.2) a(n) ________ model shows what something looks like.
write t for true or f for false. if false, rewrite the statement to make it true.
8.3) physical models are used to show what dinosaurs look like.
8.4) physical models cannot be smaller than the real thing.
8.5) using models to do experiments can help planners make decisions.
8.6) scientists do not use drawings to save money and materials before building things.
8.7) as scientists get new data and information, they change their models.

Explanation:

1. A model is a descriptive investigation showing how something works or what it looks like.
2. Physical models depict appearance.
3. Physical models can represent dinosaurs' looks.
4. Physical models can be smaller (e.g., model cars).
5. Models aid in experimental decision - making.
6. Drawings are used to save resources before building.
7. New data leads to model changes.

Answer:

8.1) model
8.2) physical
8.3) T
8.4) F; Physical models can be smaller than the real thing.
8.5) T
8.6) F; Scientists use drawings to save money and materials before building things.
8.7) T