Tuesday, March 29, 2016

Which cereal is magnetic??


**This is such a cool experiment! We had to find out which cereal is the most magnetic.**

Here's the amount of iron in each cereal:


**First we crushed up 1 cup of each cereal and soaked it in water to extract the iron. 

**Then, we skimmed the surface of each bowl with magnets time figure out which cereal is the most magnetic. Oatmeal Squares won because the have the most iron!


Are vitamins magnetic??


Are vitamins magnetic?? We did a simple experiment to find out! Harry loves this experiment!!

Since vitamins have iron in them, and iron is magnetic, then surely vitamins must be magnetic! But how can you find out?

First, you crush up a few vitamins into a bowl. We crushed up 4 vitamins. 

Then, you add water, which extracts the iron from them. 

Skim the top of the bowl with your magnets, and the irons attracts to the magnets and sticks!! COOL!!! :)


Magnet Fun!

We did these experiments back last fall, but I had taken a break from blogging. Harry wanted to learn magnets again, so we did the experiments again! Now that I am blogging on a regular basis, here are the cool experiments!

Harry completed several worksheets from www.teacherspayteachers.com too. We learned what magnets stick to and what makes them attract and repel.

Experiment #1

**Harry had to find out what is magnetic inside the bottle.


Experiment #2

**Harry had to find out what is magnetic inside the basket!


Experiment #3

Thursday, March 24, 2016

Edible DNA Model


Harry and I made an edible model of DNA using Cheerios and jelly beans! The Cheerios represent the strands, and the jelly beans represent adenine, thymine, cytosine, and guanine.


Strawberry DNA Extraction Lab


This is probably one of our new favorite experiments! To show Harry that DNA is in all living things, we did a very simple experiment to extract the DNA from strawberries. Harry was completely blown away by this! It was so cool too!!

Materials:
 2 strawberries 
2/3 cup water
1 tablespoon dish soap
2 teaspoons salt
2 teaspoons rubbing alcohol (refrigerate first)
Strainer, cotton balls, bowl, cups, bags, forks 

What to do:
1. Combine water, soap, and salt in a bowl. Mix well.
2. Put strawberries in a zip lock bag. Add the soap, water, and salt mixture.
3. Mash until foamy.
4. Pour the mixture through a strainer into a new container/bowl.
5. Pour the rubbing alcohol into the container. Wait 2 minutes. 
6. Use a fork or cotton ball to lightly skim the top of the mixture and extract the DNA. 

SO AWESOME!!!!!


Tuesday, March 22, 2016

X-ray Cookies


X-ray cookies!! This is probably the coolest activity I have ever done!! Soooo much fun!! :)

Needed:
1 roll of chocolate chip cookie dough
Red Jolly Ranchers

What to do:
1. Roll out a few small pieces of the cookie dough. 

2. Place dough into 3 circles on heavily greased aluminum foil on a cookie sheet, but leave the middle of the circle open.

3. Place 3 red Jolly Ranchers in the middle of the circles. 

4. Bake at 350F degrees for 11 minutes.

5. Cool and put on plates.


X-ray Activity:
**I printed black and white pictures of skeletons and number charts from Google. Then I colored over them with red and orange markers so that the pictures are hidden. When you slide the cookie over the picture, the red and orange disappear, and you can see the pictures! SO. COOL.


X-ray Box


We learned about X-rays, so I made an X-ray box! Just put Christmas lights inside a clear container! I printed X-ray pictures from Google too. :)


Egg Experiment-- Sink or float??


Will eggs sink or float in water?? We put a raw egg in salt water and fresh water to find out!

Harry dissolved 15 teaspoons of salt in a glass by mixing it with a spoon. He put a raw egg in a glass of salt water and a glass of fresh water to find out which egg would sink or float..

He LOVED this experiment!!

He also filled out the worksheet from www.teacherspayteachers.com too.

Monday, March 21, 2016

Volcano Eggs


Have I mentioned that baking soda and vinegar is our favorite experiment?? Ha ha! 

All you need is baking soda, vinegar, and plastic Easter eggs...