Science has been a great experience this week. At times it is boring with the lectures, but the activities and all we are learning makes it way worth it. On Monday experimented with air and pressure. We started by tipping tables upside down and blowing up balloons and then placing the balloons under the tables and standing on the tables to see how many people we could get on before the balloons popped. We got up to ten which was a new record for the classes he has taught. It was pretty fun and a great experiment.
We also made our own helicopter seeds from paper and tried flying them inside. After making some alterations to try to make them spin or fly better we took our paper helicopter seeds outside and let them fly in the wind. The moving air made them go so far and many of them were blown over the fence near the church. Kids could have fun doing this for hours.
On Tuesday, we did activities dealing with the material world. We discovered why the gingerbread man jumped on the foxes back. The gingerbread man knew he and his button would dissolve if he touched the water, so he was trying to stay out of the water. We did this experiment with ginger biscuits and M&Ms. The ginger biscuits floated at first and then sank. As the biscuits dissolved, the water became yellow and the biscuits became mushy. After awhile the biscuits floated back to the top, were a lighter color and were all mushy.
We dropped the M&Ms in water as well and let them sit. There colors began to separate from the m&m fairly quickly. Then a while coating started to peel off of the m&ms and the m on the candies floated to the top of the water. Afterwards only the plain chocolate was left which remained hard. We experimented with this several times. And then role played what we observed by having different people be each layer of the m&m.
We did a few activities with heat and balloons. We filled a bottle with hot water dumped it out and then placed a water balloon on top and the heat allowed it to slip through the hole in the top of the bottle. We did the same thing but put an empty balloon of the top of the bottle and saw that the air in the bottle went into the balloon. We also did one similar where we put the lid back on the bottle and the bottle shrank because there was less air in it. After doing all of these activities with physical changes, we did one with a chemical change.
We took a bottle and poured some vinegar in it. We then put some baking soda in a balloon and placed the balloon on the top of the bottle. When the baking soda and vinegar came in contact with each other, a chemical reaction occurred which caused the balloon to expand. It was a pretty cool experiment. I think kids would enjoy all of these activities and they would really help to teach them about the material world.
We experimented with sound by looking at a music box and learning that without the box for the sounds waves to travel through, it doesn't make much noise. We continued our sound experiments with balloons and ended up making a balloon band with balloons and different objects in the balloons like hexagonal washers, berries, ball barrings, etc. just to see what sounds they make. It was so much fun. We added a reed instrument to our balloon band by playing the straw.
After experimenting with sound, we looked at balance. We balance a hammer from a table and played for almost an hour with plastic helicopter spinners. It was such a blast. The wonder in our eyes was like we were 5 years old again.
On Thursday, we got to teach each other different physical science activities. It was great practice for when we actually start teaching minus when we teach each other we intentionally misbehave. Nancy taught us how there is actually water inside popcorn kernels and that when they are heated the water evaporates and they pop! I can’t believe I never knew that about popcorn.
I taught my group how to pick up an ice cube with thread by melting the ice around the thread with salt and then the bottom of the thread became frozen to the ice. Pretty cool. Alison taught us about pushed and pulls and Kara and I had fun pulling each other. Kara did an activity with friction. We had a pretty good time teaching each other about the physical world.
We then came back together was a class and did experiments with floating and sinking by placing lots of objects in a bowl of water to see what sunk and what floated. So many of the simple activities we did this week would be great for kids to explore in the classroom. I definitely want to teach science through inquiry.
On the last day of science, we experimented with the living world. We looked at plants through a magnified glass and took apart the petals. Inside one of our blossoms looked pretty cool.
We also looked at some fruits and vegetables. We classified them by size, shape, color, and then fruits and vegetable. My teacher tried to convince me that peas and green beans are fruits because they have a seed, but I still believe they are vegetables. We cut the fruits and veggies in half and looked at the inside of each as well before eating them. Our fruits and veggies really are pretty. This world is so amazing.
We made volcanoes using a film canister with a vitamin C tablet and water inside and then putting it is oats and the relation in the canister made the oats fly everywhere. It was pretty cool. Kids would love it, especially boys. I have made volcanoes with baking soda and vinegar before but never the way we did today, it was pretty cool. Mom you should do it with your cub scouts.