Gravity

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Group Members

Sam Mason

Marisa McEvers

Kathleen McLean

GPS

We will read the standard aloud and have it written out on the board.

SKP3 Students will observe and communicate effects of gravity on objects.

a. Recognize that some things, such as airplanes and birds, are in the sky, but return to earth.

b. Recognize that the sun, moon, and stars are in the sky, but don’t come down.

c. Explain why a book does not fall down if it is placed on a table, but will fall down if it is dropped.

Video

3 MINUTES!!

http://www.youtube.com/watch?v=HIJeZ4MIXgI

Key Terms

5 TO 10 MINUTES!!

Gravity: Every object in the universe attracts every other object with the same force

Hypothesis: testable explanation

Children's Story

10 TO 15 MINUTES!

First, have children sit down in "circle time." Then read animatedly.

Ten Apples Up On Top! by Dr. Seuss

Geisel, Theodor. (1961). Ten Apples Up On Top! New York: Random House, Inc.

Follow Up Questions:

1. Why did the apples stay on their heads?

2. Why could they not have floated in the air instead of fall to the ground?

3. What If the apples were two different weights? If they fell which would fall faster?

An Experiment on Gravity

NO MORE THAN 35 MINUTES!!

Make sure Kindergartners can understand the dialogue. Use small words.

Safety Rules:

1. No throwing the objects.

2. Don't put the objects in your mouth.

3. Follow directions!

Object:

See that gravity has an equal pull on every object.

Materials:

2 round objects that are the same shape but different weights

Procedure:

Step 1: Take the heavy object and drop it from an elevated height. Measure the time the object takes to fall and hit the floor.

Step 2: Repeat step one two more times in order to have more accurate results.

Step 3: Repeat step one and two with the lighter object.

Follow Up Questions: (Instruct them to put their heads down and do a thumbs up sign or a thumbs down sign to answer the question)

Did one go faster or did they both hit the ground first?

Do heavier objects fall faster than lighter objects?

What are other gravity experiments that you could could at home to show your parents what you learned about gravity? (Have them talk in pods and present their answer after about 3 minutes.)

Dialog:

Lets take two identical objects, but one weighs more than the other. Now which object do you think will fall the fastest? (Allow them time to answer) The lighter one or the heavy one? Now, how could we figure out which one is faster? Lets drop it and see!

After Experiment:

Here I may going to pass around the balls so that you can feel the difference in weight. Did the heavy ball fall just as fast as the light ball? (answer should be yes)So what does this show us? Yes, this means that gravity causes everything to fall at the same speed.