Science - LESSON 2 - Models Review Lesson

Science - LESSON 2 - Models Review Lesson

What is a Model?

A model is used by scientists to REPLICATE a real thing.

Why do Scientists use Models?

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Scientists use models to study things that are too big, too small, or too dangerous to study in real life.

Multiple Choice

What would a diagram of a butterfly show you?

• How a butterfly flies

• The anatomy of a butterfly

• The colors of butterflies

• The difference between a butterfly and a moth

Multiple Choice

Tommy is researching tadpoles. He wants to show the students in his class the different parts of the tadpole's body, so he makes a model drawing. Why would Tommy choose to make a model drawing of a tadpole?

• Because a tadpole is large

• Because a tadpole is small

• Because a tadpole is dangerous to humans

• Because a tadpole is expensive

Multiple Choice

A model of an airplane is much smaller than a real airplane.

Think about a toy airplane.

What is the biggest difference between a model and real airplane?

• You will not be able to see inside the windows of the airplane like a real plane.

• It will not fly in the sky like a real airplane.

• It will not have wings like a real airplane.

• The doors will not open like a real airplane.

Multiple Choice

Carter has an idea for a new type of wooden boat that will carry loads of special equipment. He wants to quickly build a model of the boat to see if it will float. Which of the following will be hard to do for the model?

• Put the model boat in water

• Paint the outside of the model boat

• Make the model boat out of the same material as the real boat

• Put models of all the special equipment on the model boat

Multiple Choice

Scientists must test cars to be sure that the air bags will keep a person from getting hurt during a crash. Scientists use crash test dummies for these experiments, which are models of people. Why

would a scientist use a crash test dummy instead of a person?

• It is too expensive to hire a real person.

• The crash test dummy fits in the car better than a regular person.

• It is too dangerous to use a real person.

Multiple Select

Check all of the reasons that a scientist might choose to use a model

• If something is small, a drawing would show more detail

• It is more fun to make models.

• It is safer to use a model when testing designs that could be dangerous.

• It is less expensive to try designs in a model before making the real design.

Multiple Choice

In a good experiment, how many variables should you change at one time?

• 4

• 3

• 2

• 1

Multiple Choice

Nathan makes different paper airplane designs. He flies them to help him understand how real airplanes can fly. What can Nathan learn about real airplanes from his models?

• How well different airplane designs can fly

• How an airplane engine works

• How to fly an airplane through the clouds

Multiple Choice

What is the FIRST step in the scientific process?

• Do the experiment.

• Ask a question.

• Draw conclusions.

• Make a hypothesis.

Multiple Choice

After you ask a question in the scientific process, what is the NEXT step?

• Make a hypothesis.

• Do the experiment.

• Draw conclusions.

• Plan the experiment.

Multiple Select

Which of these statements are true? Check the true statements.

• Scientists use models to study things that are too big, too small, or too dangerous to study in real life.

• The constants in an experiment are the things that stay the same.

• Models are always better to use in an experiment than the real thing.

• You should state your hypothesis at the end of the experiment.

• If an experiment proves your hypothesis was wrong, you must have done something wrong during your experiment.

Multiple Choice

What does it mean to DRAW CONCLUSIONS in the scientific process?

• Draw a picture

• Write what you learned in the experiment

• Make a prediction

• Conduct the experiment.