Celery stalks (with leaves). Food coloring. Water. Clear glasses or jars..Prepare Glasses: Fill each glass with water and add a few drops of food coloring. Insert Celery: Place a celery stalk into each glass. Observe: Observe how the colored water moves up the celery...
Soil or sand Paint trays or shallow trays Water Measuring cups or beakers Protractors or objects to create different slopes (e.g., books, blocks) Rulers Paper towels or sponges Worksheet for recording observations Safety goggles (optional).Introduction: Explain to the...
Various materials (e.g., sponge, paper towel, cloth, plastic, metal). Small bowls of water. Eye droppers or small cups. Absorption observation sheets. Clipboards and pencils..Introduction (5 minutes): Discuss the concept of water absorption and its importance. Explain...
Paper plate Pencil Plasticine or modeling clay Marker or pen (for writing numbers) Ruler (optional, for marking equal distances) Introduction: Explain how sundials work by using the position of the sun and the shadow cast by the gnomon (the stick or pencil) to tell...
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