Hooked On Science – Sand That’s Scared of the Water
PLEASE follow these safety precautions when doing any science experiment.
• ALWAYS have an adult present.
• ALWAYS wear the correct safety gear while doing any experiment.
• NEVER eat or drink anything while doing any experiment.
• REMEMBER experiments may require marbles, small balls, balloons, and other small parts. Those objects could become a CHOKING HAZARD. Adults are to perform those experiments using these objects. Any child can choke or suffocate on uninflated or broken balloons. Keep uninflated or broken balloons away from children.
• Colored Sand
• Waterproof Spray
• Transparent Cup
STEP 1: Spread the colored sand onto the cookie sheet. Describe and classify the sand by its observable properties.
STEP 2: Have an adult spray the sand evenly with the waterproof spray. Mix and spray the sand, several times. Allow the sand to completely dry. Describe and classify the sand by its observable properties.
STEP 3: Fill the transparent cup more than half the way with water. Pour the sand into the water, remove the sand from the water, and observe. Describe and classify the sand by its observable properties.
The sand remains dry, even when submerged into the water. The reason, the waterproof spray makes the sand hydrophobic, or scared of water.