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Lava Jar

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lavajar.gif

Glass jar (Mason jar works well)

Water

Food coloring / bio colors

Vegetable oil

Salt

 

~~Pour about 3” inches water into the jar

~~Add coloring (keep colors light)

~~Slowly pour 1/3 cup vegetable oil into jar

~~Waite until both layers have settled

 

*Hint

The oil will sit on top of the water

 

~~Gently shake salt into jar and count to 5

~~AS you watch the oil and salt will form a “blob” and sink to the bottom of the jar

~~Keep watching as the “Blob” floats back to the top of the water

~~Repeat by shaking more salt into the jar

 

Ask the children why the oil “blob” sank to the bottom and then floated back to the top?

 

Oil is lighter than water which is why it sits on top of it and since oil does not dissolve it won’t mix with water.

 

Salt is heavier than water and it also dissolves in water so When you shake it onto the oil, it clings to the oil “blob” and brings it to the bottom.

After the salt has had time to dissolve it releases the oil “blob” and it floats to the top.

Copyright 2006 Brighteyes Learning
Copyright 2005 Brighteyes Learning

 

Rebus recipes are Brighteyes Learning Originals made from original and existing text recipes. All images are created using public domain pics from free-grahics.com, free clipart.com, clipsahoy.com, clipart heaven.com unless otherwise noted. Wash pics are from the CDC. All actual product images are not Brighteyes Learning property and retain their original copyrights. Shrek image is a copyright of Disney and Pixar.Brighteyeslearning2 makes no claims to these images as original unless otherwise noted. All images have been found as public domain or have had permission granted by author. Additional pictures are original colleges. All attempts have been made to give proper credit to all images and contents. All rebus recipes have been adapted to fit the Brighteyes Learning2 rebus recipe format. All text recipes have been adapted from existing recipes, or are originals from Brighteyes Learning2. If you have found any material on this site which is your original work please contact brighteyeslearning2@yahoo.com and either proper credit will be given or removed per your request.