FISH THAT FLOAT This one also addresses density and solubility.
1.Using a dry-erase marker, sketch the outline of a fish on the underside of a glass dish or tray. Verify that all of the lines in your drawing are connected by retracing it. Give it a minute or two to dry. 2.Weigh out the measuring cup using the tap. Add water very gently until it barely reaches the bottom of the dish, placing the pour spout just inside the corner. Take cautious not to spill water near or directly onto your drawing. The water will approach your drawing and finally encircle it. Watch what transpires. Empty the dish, use a paper towel to erase the artwork, dry the dish, and try again if the water splashes or doesn't work the first time. 3.Adjust the dish's tilt by a small amount. What takes place? Write it down.
Dry erase markers are designed to have slick ink. Its composition includes a chemical that makes it simple to remove off surfaces. It is important to note that permanent markers include a chemical that causes the ink to adhere to surfaces, so avoid using them for your experiment.
Why does the easy-release ink float when it releases from a surface? There are two causes. To begin with, dry erase ink isn't soluble, so it won't go away in water. Second, dry erase ink becomes buoyant—that is, it can float—because it is less dense than water. The fish bobs on the surface of the water when you tilt the dish. SAFETY CONSIDERATIONS It is advised that adults supervise children, particularly while handling water. Make sure your workspace is safe and use caution while handling slick surfaces. Through the construction of a floating fish, children may explore the ideas of density and buoyancy in this experiment. It encourages critical thinking, scientific observation, and a grasp of fundamental physics concepts. Take pleasure in investigating buoyancy and density with your floating fish experiment.
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