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science for tinies: air and water
Dec. 4th, 2011 11:29 amProject: Is There Air In There?
Materials: large-ish clear plastic tub, clear plastic cup, paper towel, food dye
Explanatory details: Taken from Air Is All Around You. We filled the plastic tub with water and added a drop of food dye to make it easier to see. We looked at the paper towel and agreed that it was dry, then stuffed it into the bottom of the cup. If we put the cup in the water, would the towel stay dry? Junie thought it would get wet, but we pushed the cup straight down in the water upside-down and took it out again, and the towel stayed dry. Then we put the cup in again and looked at how the water couldn't get in there, then tilted it to make bubbles go blurp out the side, until we could see how there was water partway filling the cup. We picked the cup up partway out of the water, and saw how the water came up with the cup.
How did it go: Good. Junie was eager to get to the part where she could play with the water, but she looked with interest at the things I pointed out.
Things we talked about: The cup looks empty, but it has air in it; if some air gets out, some water goes in, and the water has to stay in if air can't get in instead.
What Junie got out of it: She really liked getting to mix in the food dye, and when the bubbles went blurp. She saw how sometimes we can do science by following the instructions in a book.
Materials: large-ish clear plastic tub, clear plastic cup, paper towel, food dye
Explanatory details: Taken from Air Is All Around You. We filled the plastic tub with water and added a drop of food dye to make it easier to see. We looked at the paper towel and agreed that it was dry, then stuffed it into the bottom of the cup. If we put the cup in the water, would the towel stay dry? Junie thought it would get wet, but we pushed the cup straight down in the water upside-down and took it out again, and the towel stayed dry. Then we put the cup in again and looked at how the water couldn't get in there, then tilted it to make bubbles go blurp out the side, until we could see how there was water partway filling the cup. We picked the cup up partway out of the water, and saw how the water came up with the cup.
How did it go: Good. Junie was eager to get to the part where she could play with the water, but she looked with interest at the things I pointed out.
Things we talked about: The cup looks empty, but it has air in it; if some air gets out, some water goes in, and the water has to stay in if air can't get in instead.
What Junie got out of it: She really liked getting to mix in the food dye, and when the bubbles went blurp. She saw how sometimes we can do science by following the instructions in a book.
