Objective
By the end of this lesson, you will be able to understand basic concepts related to Earth Science, such as the different layers of the Earth and the water cycle.
Materials and Prep
- A globe or a world map
- A clear glass of water
- A small container
- Blue food coloring
- A small piece of sponge
- A paper towel
Activities
- Explore the Globe: Show the globe or world map to the student and point out the different continents and oceans. Ask them to identify their own location on the map.
- Layers of the Earth: Explain that the Earth is made up of different layers. Use the globe or a diagram to show the crust, mantle, and core. Encourage the student to touch and feel the surface of the Earth to understand the concept of the crust.
- Water Cycle Experiment: Fill the clear glass with water and place it in a sunny spot. Explain the water cycle and how water evaporates from the Earth's surface, forms clouds, and then falls back to the ground as precipitation. Add a few drops of blue food coloring to the water and cover the glass with the small container. After some time, the student will observe condensation on the container and precipitation (blue droplets) inside it.
- Water Absorption: Take the small piece of sponge and place it on a paper towel. Pour water on the sponge and let the student observe how the sponge absorbs the water. Explain that the Earth's surface also absorbs water, which helps replenish our underground water sources.
Preschool Grade Talking Points
- "The Earth is a big, round planet where we live."
- "The Earth has different parts, like the crust, mantle, and core. We live on the crust, which is like the hard shell of an egg."
- "Water can change into a gas called water vapor when it gets hot. It goes up in the sky and forms clouds."
- "When it gets cold, the water vapor turns back into water droplets and falls from the clouds as rain or snow. This is called precipitation."
- "The Earth's surface can also soak up water, just like a sponge. This helps keep our underground water sources full."