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Properties of Matter Activity for Kids
- Duration: 30-60 min
- Difficulty: Easy
- Cost: $0 to $5
Make classic slime and explore its properties!
- 1Measuring cup
- 1Cup of water
- 1Tube of washable glue
- 1Teaspoon of borax powder
- 2Mixing bowls
- 1Spoon or spatula
- 1Food coloring optional
- 1Measure ½ cup water and ½ cup glue in first bowl.
- 2Add a few drops of food coloring (optional).
- 3Mix with a spoon or spatula.
- 4In a separate bowl, mix 1 teaspoon of borax into ½ cup of water.
- 5Pour the two bowls of liquid together.
- 6Mix until it becomes slimy.
- 7Study the properties of the slime!
- 8Tip: Do not to use the same bowls you eat from.
How It Works
The ingredients used to make slime undergo a chemical change when they are mixed together. Glue is a thick white liquid, but when mixed with borax it forms a new chemical that is much thicker ... and it's slimy! The properties of the new substance are different: both glue and borax can be dissolved in water, but slime does not dissolve in water. Slime is also more dense than water so it sinks (unless you mixed in a lot of air bubbles when stirring it). Try to study its other properties!