What Kinds of Models Do Scientists Use?

A _____________________ is something that scientists use to represent an object or process

• mass
• matter
• model
• weight

Creating representations of complex objects or processes.

• evaluating
• making models
• scientific investigation

Pick the reasons why we use models

• Models are expensive

• Models help you understand complex systems

• Models are used when systems are too expensive or impossible to use

Models can be helpful in scientific investigations because

• it may not be possible to work with the real thing.

• they can be smaller and more manageable than the real thing.

• they can be safer to work with than the real thing.

• all of the above

What is the advantage of creating a model of a dinosaur?

• they are too large to easily study 
• they are too complicated to study
• Real dinosaurs cannot be studied because they are extinct
• The model is safer to work with.