SCIENCE CONCEPT:

A force is a push or a pull upon an object.

STUDENT OBJECTIVE:

The student should understand that a force is either a push or a pull.

OVERVIEW:

The student will observe or demonstrate the push or pull force upon an object that creates motion.

TEACHER TEXT:

Motion section

PREPARATION TIME: 0 minutes

LESSON TIME: 10 minutes

TEACHER PREP:

None

WORDS TO KNOW:

• force
• push
• pull
• motion

MATERIALS NEEDED:

• rubber bands
• hands

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STEPS TO FOLLOW:

1. Have children push their hands together.

2. Have children link their fingers together and pull their hands apart. Feel the force.

3. Have the children put a rubber band over their thumb and index finger. Stretch the rubber band by pushing their fingers apart. Feel the pull of the rubber band as more force is applied.

WHY?

A force is either a push or a pull.

ASSESSMENT: Can the student communicate what they observed?

4....student is able to communicate that things move because a force is exerted upon an object.

3....student is able to communicate that a push or a pull makes things move.

2....student is able to demonstrate a push and a pull.

1....student is able to demonstrate a push or a pull.

EXTENSIONS:

1. Have children find objects that can be pushed or pulled to move them and do it.

2. Have the children look in magazines for objects that move with a push or pull. Cut out the pictures and paste on paper, classified as push or pull.

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Last modified: Thu Mar 13 16:57:17 PST 1997