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The Whiteoak Academies of
Hannah More Infants and Grove Juniors.
Growing and learning together. Aspiring to excellence.
Home Page The Whiteoak Academies of
Hannah More Infants and Grove Juniors.
Growing and learning together. Aspiring to excellence.

Science

Science ~ wb 13th July

Alternate Science Activity

 

BAKING SODA VOLCANO

MATERIALS:

  • 6 cups of flour
  • 2 cups of salt
  • 4 tablespoons cooking oil
  • 2 tablespoons of baking soda
  • dishwashing detergent
  • food color
  • vinegar
  • warm water
  • baking dish or pan
  •  

PROCESS:

First, make the cone of the baking soda volcano. Mix 6 cups flour, 2 cups salt, 4 tablespoons cooking oil and 2 cups warm water. The mixture should be smooth and firm. Add more warm water if needed.

Stand the soda bottle in the baking pan and mold the dough around it into a volcano shape.

*Don't cover the opening or drop dough in it.

Fill the bottle most of the way full with warm water and a bit of red food color.

Add 6 drops of detergent to the bottle contents.

Add 2 tablespoons of baking soda to the contents.

Slowly pour vinegar into the bottle.

Watch the eruption!

 

EXPLANATION:

Why does this happen? The red lava is the result of a chemical reaction between the baking soda and vinegar. In this reaction, the carbon dioxide gas is produced, pressure builds up inside the plastic bottle until the gas bubbles out of the volcano. This is a good representation of what happens in real volcanoes.

 

Last Weeks Science (wb 6th July)

Alternative Science Activity

 

MAKE A RAINBOW  

MATERIALS: 

  • glass of water 

  • sheet of white paper 

  • the sun 

 

Process: 

Fill the glass all the way to the top with water. 

Put the glass of water on a table so that it is half on the table and half off of the table. Be careful that the glass doesn't fall. 

Then, make sure that the sun can shine through the glass of water. 

After you do that, place the white sheet of paper on the floor. 

Adjust the piece of white paper and the glass of water until a rainbow forms on the paper. 

 

Explanation: 

Why does this happen? Light is made up of a lot of colours. Specifically, the colours are red, orange, yellow, green, blue, indigo and violet. When light passes through the water, it is broken up into the colours seen in a rainbow. 

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