Water Fireworks

Naomika Chalasani

Grade 2

Showcase

Purpose, Question, or Problem you want to solve

I want to find out why some liquids do not mix with each other and what happens when food coloring is mixed with water and oil.

Background Information

• Oil is lighter than water. So, oil floats on the top.
• Food coloring when added to water mixes with it.
• When food coloring water is added to oil then it sinks to the bottom through the oil. This creates fireworks!

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Hypothesis

Food coloring mixed with water will not mix with oil and it will sink to the bottom spreading like fireworks

Materials

• One clear bottle
• 3 Measuring Cups
• Food coloring – red, yellow, blue
• Water
• Vegetable oil
• Paper towels
• Syringe

Procedure

• Fill water in the 3 measuring cups and add a few drops of food coloring into each of this cup.
• Take the bottle and pour ½ cup of vegetable oil.
• Using syringe, suck the coloring water and drop them into the bottle with oil.
• It will create small coloring droplets like pearls which fall to the bottom of the bottle and a pattern which appears like fireworks!

Results

Oil stays on the top and coloring water sinks to the bottom of the bottle creating streaks like fireworks and pearls.

Conclusions, what you learned, or next steps

• Oil is lighter than water.
• Food coloring mixes with water.
• Coloring water does not mix with oil and sinks to the bottom creating patterns.

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Online Material:

• Science Fun for Everyone
• Fun Learning for Kids

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