Friday, April 27, 2012

Joe the Iguana's House (Version 2)

Last year I posted "Iguana Stop-motion". Unfortunately, as soon as I finished the script, I destroyed the house that the video was staged in. Newly, however, I have been remaking the scene and have developed a new house. Enjoy!


 The front of the house.
 The front porch.
 Bird cage.
 Duel bird cage and cat feeder!
 Crawl space entrance.
A peek through the window.

Monday, April 16, 2012

This is my tenth science project. It is about acids and bases.


Objective: 
Observe what happens when combining an acid with a base and a base with an acid.
Predictions:
I predict that if you add a pink liquid to a green liquid, the liquid will turn purple.
I do not think that a pink liquid will turn green if a green liquid is added.
I do not think that a green liquid will turn pink if a pink liquid is added.
Observations:




Results:
When I added a pink liquid to a green liquid, I got a purple bubbling liquid.
When I added a green liquid to a pink liquid, I got a purple bubbling liquid.
When I continued to add the green liquids to the pink liquids, I got a purple bubbling liquid.
Conclusion: When you add a base to an acid or an acid to a base, you will get a purple bubbly liquid because of the acid canceling out the base and a chemical reaction.


This is my ninth science project. It is about indicators.

Objective: To observe that acids and bases have different properties and to use an acid-base indicator to determine whether liquids are acids or bases.
Predictions:



Observations:


Observations after pouring quarter cup of dark purple cabbage juice:


When I added the cabbage juice to the sour liquids, they turned red, opposed to when I added the cabbage juice to the non sour liquids and they turned purple. I could tell that the non sour liquids were non sour because they would have turned red if they were sour.
Conclusion: Acid-base indicators turn acids red, bases green and neutrals purple. 
The cabbage juice was an acid-base indicator. The indicator turned the white grape juice, the grapefruit juice, and the lemon juice red because they were acids. The indicator turned the antacid and the baking soda water green because they were bases. The indicator kept the milk, the mineral water, and the distilled water the same color because they were neutral.




Saturday, April 7, 2012

This is eight science project. It is about describing chemical reactions.


Objective: To observe changes that occur in some substances when they undergo chemical reactions.
Procedure:
1. Describe the four mysterious substances on the table.
2. Write hypotheses and observations of combining substances.


Summary: 
Mystery liquids revealed: A= lemon juice, B= vinegar, C= milk D= baking soda and water 
Lemon juice does not react with vinegar.
Lemon juice reacts with milk.
Lemon juice reacts with baking soda and water.
Vinegar reacts with milk.
Vinegar reacts with baking soda and water.
Milk does not react with baking soda and water.
Analysis:
When lemon juice was added to vinegar, it did not have a reaction. But when lemon juice was added to baking soda and water, it had a reaction.
Lemon juice and milk reacted similarly to vinegar and milk. They both became filled with particles.
Lemon juice and baking soda and water reacted similarly to vinegar and baking soda and water. They both bubbled.


Conclusion: My guesses were mostly right, although two were wrong and one surprised me a lot. The one that surprised me was the milk and the baking soda and water. My guesses had been getting more accurate as the experiment progressed and I thought  the milk and the baking soda and water would produce a reaction. When I discovered I was wrong, I tried to find some way to make it so I was right. Eventually, I realized there was no way to change the way things were, and I gave in and wrote it down.

Sunday, April 1, 2012

Happy Spring

Happy spring! I hope you have tastier carrots than this guy!

This is my seventh science project. It is about how molecules stick together.
Objective: Explore the way atoms stick together to make molecules.
Procedure: 
1. Get some Lego blocks, some toothpicks, some marshmallows, and some gumdrops.
Data:
How many Lego 1x2’s can you stick on a 1x2 Lego block?
1,2 blocks.
How many Lego 1x2’s can you stick on a 2x2 Lego block?
1,2,3,4 blocks
How many Lego 1x2’s can you stick on a 2x4 Lego block?
1,2,3,4,5,6,7,8 blocks
With 4 toothpicks, how many shapes can you make?
6 expected.  9 found.  Sarah got 14.
With 1 toothpick, how many shapes can you make?
1 expected.  1 found.  Sarah got 1.
With 2 toothpicks, how many shapes can you make?
1 expected. 2 found.  Sarah got 2.
With 3 toothpicks, how many shapes can you make?
9 expected. 5 found.  Sarah got 6 (but had one wrong).
Conclusion: Using models of hydrogen and oxygen bonding with up to 4 possible electron bonds, we found 3 combinations: H2O, O2, and H2O2. I thought that was neat and interesting how these molecules formed by random using rules. Without rules, the universe would go into chaos because there would be no order.