Switching Places



Ta-Do: Hands…On Science Season 1, Episode 14 – Switching Places Send us your comments and suggestions on experiments that Carr and Mel should try out on Hands… On Science! https: //midnightscienceclub.com Materials: 1/4 cup of cooking oil 2 small glasses (shot glasses) 1 cup of blue cup of water (add blue food coloring to cup of water) 1 piece of plastic, the size of a business card (ex: old credit card) Napkins to clean-up spills How to do it: Fill one of the small glasses with oil, using the pipette. Fill I to the very top, get as much oil in the glass as you possibly can with out it spilling over. Do the same with the blue water. Fill the glass with blue water, and then use the pipette to fill it to the very top with out it spilling over. Take the plastic card and cover the blue water. Quickly, turn the cup over, while holding the plastic over the opening, then place it over the glass of oil. Slowly take the plastic card away until you see the oil and water “switch places”. You may not need to take the plastic card completely off until this happens, and sometimes you may need to. The oil is now in the glass cup that had the blue water, and the blue water is now in the glass cup that had the oil! “Switching places!”


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