Abracadabra! It's gone!

Question: Can you make an object almost
invisible?

Hypothesis: We think that you can make an object almost invisible by using two objects with low reflection and roughly the same refraction rate.

Our Experiment

Materials: 

• Straw
  
• Three glass beakers
• Three glass test tubes
  
• Coin
  
• Baby Oil
  
• Water
  
• Dropper
  
• Small, glass bottle
  

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Safety Procedures

Material 3:  Do not drop glass.
Material 6: Do not drink baby oil.

Procedure:

1. Place a straw into a beaker that has been filled with water. Notice that the straw bends.
   
2. Once done with experiment #1, place a coin under an empty beaker.
3. Fill beaker with water, and place your head parallel to the table. Notice that you can't see the coin.
   
4. Now, take a small bottle filled with baby oil. Insert a dropper that is partly filled with baby oil and air. Squeeze dropper and watch the dropper appear to grow longer.
5. Next, fill a beaker with baby oil.
   
6. Put an empty test tube inside of the beaker.  Notice that you can see the test tube.
7. Fill another test tube with water and put it in the beaker filled with baby oil.  Notice that you can still see the test tube.
8. Fill the third test tube with baby oil and put it in the beaker filled with baby oil.  Watch it disappear.

Special Needs:
Water.

Watch us in action:
<feel free to add pictures, videos, etc>

The Science behind it

     We see objects because of reflection and refraction. Some objects have low reflection, such as glass, which makes them hard to see. As light passes through an object,  like glass, the speed at which the light travels will change.  This causes the light to bend.  This is called refraction.  We are able to see objects because of refraction or bending of the light.  Some objects will bend the light more than others.  The degree to which the light is bent is the refraction rate.  If light passes through two different objects with the same refraction rate, the light will not bend, and you won't be able to see it.       

Later on you can Add Graphs with results

Conclusions
     In conclusion, we accept our hypothesis because the test tube filled with baby oil disappears due to the refraction rate, which is the speed light goes through an item. If an item and the item surrounding it have about the same refraction rate, the inner item appears INVISIBLE.

About Ray

Ray is an SIS fifth grader who likes soccer and reading. He thinks that this project is very interesting, and he wants to learn more about this phenomenon.

About Lily

Lily is also a fifth grader at SIS who also enjoys playing soccer and reading. She really likes the experiment that she and the rest of her teammates choose. 

About Colin
Colin is also in 5th grade and is in Mrs Gronert and Mrs. Pepe's class.  He enjoys reading and playing basketball.  He is very excited to demonstrate his group's chosen experiment.

About Liam
Liam is a 5th grader in Mr. Camarra's class.  He enjoys reading and likes to play soccer.  He is very excited to demonstrate this experiment.