Walking on Water
Materials needed:• 7 plastic clear cups • 6 paper towels • Water • Food coloring
- Line-up 7 clear cups and pour water in every other cup. Both end cups should have water.
- Make sure there is less water in the two end cups than the two cups in the middle.
- Pour a few drops of food coloring in the cups that have water.
- Stir the water in each cup that has water.
- Fold up a paper tower and place each end in adjacent cups. Make sure each folder paper towel is long enough to touch the bottom of each cup!
- Repeat this process until all cups have been connected.
- Wait and check back after a few hours.
Before the activity, ask these questions:• What do you think will happen when we leave the paper towels in the water? • Can you give me a few possibilities of what might happen? • Why do you think that? • What happens when colors are mixed? During the activity Ask these questions: • How many cups do we have? • If I took 1 cup away, how many would we have left over? What if I added 1 cup? • Out of these 7 cups, how many pairs of 2 can we make? • What happened when we put drops of food coloring in the water? Why do you think this happens? • If we mix different colors, what will happen? Why? • How long do you think it will take for something to happen? Let’s take a guess.
After the activity, ask these questions:• What happened here? Can you describe what you see? • Some of the colors blended, what new colors did we create? • How do you think that happens? Does mixing make new colors? • What would happen if we mixed different colors? • Are the new colors dark, or light? • Did your prediction come true?
Things to remember• Keep the conversation going before, during, and after the experiment. • Let the children play an active role in setting up, making predictions, and conducting observations while you wait for the colors to change. • Ask leading questions, and extend the conversation when they reply. • Use phrases like, “why do you think that,” “tell me more,” or, “what would happen if…” • Keep it fun. Laugh, be engaging, let the children enjoy the process. Science terms to use during the activity: • Experiment • Blend • Color • Observation • Mix • Pattern • Predict • Data • Design • Cause • Effect • Dense • Liquid • Processes • Absorb
Article was adapted from an original piece published on STEAM Corner, a blog by Child360 STEAM researcher, Drew Barett. Click here to view the original, and for more ideas on how to innovate STEAM in the classroom, and at home.