How to Show Different Densities With a Water Bottle

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by Adam .

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Step 1 of 8

Fill about 3/4 the water bottle with warm water. You must use warm water.

Step 2 of 8

Put a large amount of sea salt in the water bottle and shake it. You will notice that the water will get very cloudy.

Step 3 of 8

Add a few drops of blue food coloring to the warm salt water and shake it again.

Step 4 of 8

Fill a cup with cool water. You must use cool water and do not put salt in this water.

Step 5 of 8

Add a few drops of yellow food coloring. Remember not to add salt.

Step 6 of 8

Slowly and carefully pour the yellow fresh water into the bottle with the blue salt water using a funnel. The yellow fresh water will turn green.

Step 7 of 8

This is what you should get when you are finished.

Step 8 of 8

You can also experiment with different colors and you can try to slowly turn the water bottle on its side and upside down. Have fun!

You're Done!

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This guide was made by:

Adam .

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Leave a Comment

Cool!

Adam . (author) 5 months ago

Oh right ok thanks! I might show my rainbow pack this!

Anna Ormesher 5 months ago

Great! I also found that a large amount of salt was needed. I'm glad that you and your son had a good time! :)

Adam . (author) 5 months ago

My son and I just did this, it is fun! We had to use a lot more sea salt than I expected but it worked great!!

Shannon Hoag 5 months ago

floats*

Adam . (author) 5 months ago

Because the regular water is less dense than the salt water, it float on top of the salt water.

Adam . (author) 5 months ago

I don't get it...0.O

Anna Ormesher 5 months ago

1 Empty Water Bottle

1 Cup

1 Funnel (optional)

Blue Food coloring

Yellow Food coloring

Sea Salt

Water

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