POPCORN LAB
Hypothesis:
If the kernel expands, then the mass will stay the same, because the law of conservation of mass states that during a chemical change, the total mass of the material is the same as the original.
Test Procedures:
1. We are going to need a popcorn machine.
2. We are going to need kernels.
3. First we have to count the kernels.
4. Then we find the mass of the total amount of kernels.
5. Next, we put them into the popcorn machine.
6. We take them out while making sure to see if there are any kernels that are still there.
7. After that, you count them to see if you have the same amount or less then you had with the original amount.
8. We find the mass of the popcorn and see if it is the same as the first time.
9. Now compare the two.
10. Now for the best part..... you get to eat the popcorn!!!!
Observation #1:
1. After counting we saw that their were 496 kernels.
2. The kernels were made out of corn.
3. They were all different sizes.
4. The mass of the kernels was 185.25
Variables:
Independent Variable: The kernels because they change into popcorn.
Dependent Variable: The mass because it could change because of the amount of kernels after the popping.
Control Variable: It is the bowl and the scale.
Controlled Variable: It is the mass of the kernels because we compare those two at the end.
AFTER THE EXPERIMENT...........................
Observations #2:
1. There were 495 kernels.
2. They take up more space. (volume)
3. It loses mass because 1 is missing.
4. They are different shapes and sizes.
5. The mass now is 174.7.
Conclusion:
My hypothesis was wrong because I said that the mass was going to be the same, but because we lost one popcorn and some pieces of popcorn also fell of, the mass was less afterward. Before the mass was 185.25, now it is 174.7, so the mass decreased by 10.55 g. One error we made was that we forgot to right the variables so we had to write it at the end. Another mistake we made was when one popcorn fell out and one kernel was found under the desk, so that decreased our mass a little. To make it different instead of doing popcorn we could use something else like how many chocolate chips are in a bowl and how many there are in an hour ( they could have melted). I really liked this experiment because it wasn't that hard and we got to eat the popcorn after. The one thing I didn't like was that their was no salt or butter to put on the popcorn to make it tastier. But overall I thought it was a really fun way to learn.
Hypothesis:
If the kernel expands, then the mass will stay the same, because the law of conservation of mass states that during a chemical change, the total mass of the material is the same as the original.
Test Procedures:
1. We are going to need a popcorn machine.
2. We are going to need kernels.
3. First we have to count the kernels.
4. Then we find the mass of the total amount of kernels.
5. Next, we put them into the popcorn machine.
6. We take them out while making sure to see if there are any kernels that are still there.
7. After that, you count them to see if you have the same amount or less then you had with the original amount.
8. We find the mass of the popcorn and see if it is the same as the first time.
9. Now compare the two.
10. Now for the best part..... you get to eat the popcorn!!!!
Observation #1:
1. After counting we saw that their were 496 kernels.
2. The kernels were made out of corn.
3. They were all different sizes.
4. The mass of the kernels was 185.25
Variables:
Independent Variable: The kernels because they change into popcorn.
Dependent Variable: The mass because it could change because of the amount of kernels after the popping.
Control Variable: It is the bowl and the scale.
Controlled Variable: It is the mass of the kernels because we compare those two at the end.
AFTER THE EXPERIMENT...........................
Observations #2:
1. There were 495 kernels.
2. They take up more space. (volume)
3. It loses mass because 1 is missing.
4. They are different shapes and sizes.
5. The mass now is 174.7.
Conclusion:
My hypothesis was wrong because I said that the mass was going to be the same, but because we lost one popcorn and some pieces of popcorn also fell of, the mass was less afterward. Before the mass was 185.25, now it is 174.7, so the mass decreased by 10.55 g. One error we made was that we forgot to right the variables so we had to write it at the end. Another mistake we made was when one popcorn fell out and one kernel was found under the desk, so that decreased our mass a little. To make it different instead of doing popcorn we could use something else like how many chocolate chips are in a bowl and how many there are in an hour ( they could have melted). I really liked this experiment because it wasn't that hard and we got to eat the popcorn after. The one thing I didn't like was that their was no salt or butter to put on the popcorn to make it tastier. But overall I thought it was a really fun way to learn.