Mrs' Eubanks Kindergarten Class Science Project

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Mrs. Eubanks Kindergarten Class Science Project

• The Earths Gravitational Pull

2
The Question

• Do you think the amount of marbles in each bag
  will determine or play a role in how fast the
  bags will fall to the ground?

3
The Students Response

• After counting out the number of marbles in each
  bag, The students were asked, What do you think
  will happen when I drop these two bags on the
  floor?
• They will pop.
• They will roll around.
• The bag with 10 will drop first.
• The bag with 10 is heavier.
• The bag with 5 will drop last, because it is
  lighter.

4
The Hypothesis

• We think that the Ziploc bag with more marbles
  will fall faster because it is heavier.

5
The Experiment

• The bag on the right contains five (5) marbles.
• The bag on the left contains more than five
  marbles.
• Both bags were dropped at the same time.

6
The Purpose

• The purpose of this project is to see if the
  number of marbles in each bag has an affect on
  the speed at which they will hit the floor when
  dropped from the same height.

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Variables and Constants

• Manipulated Variable
• The amount of marbles in Ziploc bag number two.
  
  

• Constants
• The amount of marbles in Ziploc bag number one.
• The size of the Ziploc bags.
• The height from which bag number one and bag
  number two are dropped is the same.

8
The Procedure

• Objective
• The class tested to see if the amount of marbles
  would effect the rate of speed at which they
  would hit the floor

• Materials
• 2 sandwich size Ziploc bags
• Standard size marbles

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The Results

• Both bags landed at the exact same time on each
  occasion

10
The Data
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Scientific Statement
As a result of our three experimental drops, the
class discovered that each bag struck the ground
at the same speed due to the Earths
gravitational pull. Thus we proved our
hypothesis to be incorrect.
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Conclusion

• The data collected did not support the original
  hypothesis. The bags fell at the same speed each
  time the they were dropped. We discovered that
  the amount of marbles in each bag had no effect
  on the speed at which they fell. The bags were
  pulled to the floor at the same speed because of
  the Earths gravitational pull.

13
Our Science Project

• We had a really great time learning about the
  Earths gravitational pull. Science is so much
  fun! We love science.