Hooked on Science - Floating Ink

January 7th – 13th

INGREDIENTS

• Red EXPO Dry Erase Markers

• White Glass Dinner Plate

• Warm Water

INSTRUCTIONS

STEP 1: Using the red EXPO dry erase marker, draw on the white glass dinner plate. Describe and classify the ink, from the EXPO dry erase marker, by its observable properties.

STEP 2: Pour the warm water on to the plate, close to the edges of your drawing, and observe. Describe and classify what you observe by its observable properties.

EXPLANATION

The red EXPO dry erase marker ink is insoluble, which means it won’t dissolve in a liquid. When the warm water is added to the plate, a strong buoyancy force forces your drawing from the plate. Since the ink is less dense than water, it floats.

SCIENCE SAFETY

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.

Jason Lindsey

STEM Certified Educator, Science Multimedia Journalist, and Meteorologist

EMAIL: This email address is being protected from spambots. You need JavaScript enabled to view it.

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WEBSITE: www.hookedonscience.org

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