Q: What do scientists use to help explain objects or systems in simpler ways?


Read this paragraph and choose the correct option from the provided answers:

Scientists use models to help them understand and explain ideas. Models explain objects or systems in a more simple way. Models often only show only a part of a system. The real situation is more complicated. Models help scientists to make predictions about complex systems. Some models are something that you can see or touch. Other types of models use an idea or numbers. Each type is useful in certain ways.

 Choices:

- theories

- measurements

- plants

- models


A:
models