4 Labs

         Last week we did 4 labs the first was the candle the next was the marshmallow the next was the big candle and last was the matter lab. First i will talk about the small candle lab. Frst in the small candle we saw the physical properties some that I saw were that the candle was rough and it was small. After we lit the candle we saw the chemical changes one chemical change I found was that the candle was melting and burning.

Next we did the marshmallow lab. First we saw the physical properties one was that the small marshmallow was small. Then we ate the marshmallow and the marshmallow tasted sweet. Then we saw the physical properties of the big marshmallow were similar to the ones of the little marshmallow. After that we lit the Bunsen burner to burn the marshmallow and see a chemical change. After that we ate the burned marshmallow.
The third lab we did was the big candle. We had to observe the candle and find its physical properties one property was smooth. We lit the candle and then saw a chemical change. After that we mixed vinegar with water. Then we put the glass over the big candle. Then the flame went out because the flame ran out of oxygen.

The last lab we did was the sugar lab. Then we saw the sugar’s physical properties we saw that the sugar was cubed, sweet, and small. Then we crushed the cubes making another physical change. then we mixed it with sugar. After that we burned the last 2 pieces of sugar. First we saw that the sugar turned yellow the black. In the end we saw that the sugar was rough and fragile.


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Mixture Lab

On Friday I we had to separate all the materials from a plastic cup. Now I will be showing you the procedure to unmixed the materials.

1. Use the big magnet to take out the medal files.

2. Use the spoon to remove the beans.

3. Use the spoon to also remove the clear marble.

4. Use your hand to take out the toothpick.

5. Put the coffee filter on the educated beaker.

6. Put the plastic funnel on top of the coffee filter.

7. Pour the rest of the solution into the funnel.

8. Put the educated beaker onto the Bunsen burner.

9. When the educated beaker looks like it has no water in it tell a teacher to remove it.

10. Observe what you see in the beaker in the end.

11.CLEAN UP!!!!!!



In the end our lab table found salt.

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Frog

Couple of days ago we dissected frogs. When I first entered the room the small was very bad it smelled like 100 garbage cans puked on the tables. At first when we started I was scared to open the frog because I thought some kind of juice wood come out. Then when we opened the frog I was amazed that there were so many eggs all around I thought the there would be 15-30 eggs not 100. Then we saw the liver which I thought was the lungs. We dissected the frog to see how the parts of it where similar to the human parts. Some things that where the same were the heart, lungs, small intestine, large intestine, etc. The materials we used were similar to the chicken wing we used and pins. We had to cut out some of the frog to see the other parts in the frog. One thing that was new to me was that the gallbladder was green I thought it would be brown like the other organs. I think that the 2nd day was better than the first day because I did not want to take out more eggs, and wanted to look at the organs and how they were similar. The frog is not similar to the frog because they swallow their food whole and we don’t, they have 3 sets of liver, and much more. I think the frog was the most like the human than any of the animals we dissected.

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9/7-9/8 Lab

We learned about the digestion system and stomach. The materials we used were a test tub rack, pepsin, water, 4 strips of litmas papers, boiled eggs, graduated cylender, hydronic acid and 4 test tubes with stoppers. We used the eggs as the meal, and the hydronic acid as hydronic acid. We used the beakers for your stomachs in our body. So all in all we put the eggs in the bakers and added acid to some of the beakers and we used enzymes in the beaker too. The next day we found out that the digestion system takes a long time because our eggs had not digested all the way.

Chicken Wing Green Class

One thing i learned from the chicken wing experiment is that the chicken wing was just like the human arm. One way it is the same as the arm is that both have muscle and bone that move the part. We also learned that the chicken wing also has muscle just like the human arm. We also now know that the wing has bone just like the arm. We also know that the chicken has ligaments in the wing just like the arm. Those were the facts that stud out to me the most because they were the ones that we most like the human arm.

Science Green Lab 10/11/11

I learned that when you mix the solution in the beaker ( iodine) and the solution in the bag (starch) the starch turns purple but the iodione stays orange. Also i learned that even though the cell membrene controls what goes in and out of a cell little things can still get in. Also I learneed that starches are kept in the cell.