Yes, you can conduct simple experiments at home to explore Science concepts in CBSE Class 1. Here are a few ideas:

1. The Floating Egg Experiment:
Materials needed: A glass of water, an egg, and salt.

Procedure:
1. Fill the glass with water.
2. Gently place the egg into the water and observe that it sinks.
3. Add salt to the water and stir until it dissolves.
4. Place the egg back into the glass and observe that it floats.

Explanation:
The saltwater is denser than freshwater, causing the egg to float. This experiment helps children understand the concept of density.

2. The Balloon Rocket Experiment:
Materials needed: A balloon, a string, a straw, and tape.

Procedure:
1. Attach one end of the string to a fixed object, like a doorknob.
2. Thread the straw onto the string and secure it in place.
3. Inflate the balloon and hold the end closed.
4. Attach the open end of the balloon to the straw using tape.
5. Release the balloon and observe how it moves along the string.

Explanation:
As the air rushes out of the balloon, it creates a force that propels the balloon in the opposite direction. This experiment introduces the concept of propulsion and forces.

3. The Volcano Experiment:
Materials needed: Baking soda, vinegar, a small container, and a tray.

Procedure:
1. Place the small container on the tray.
2. Fill the container halfway with vinegar.
3. Add a spoonful of baking soda to the vinegar and observe the reaction.

Explanation:
When baking soda (a base) reacts with vinegar (an acid), it produces carbon dioxide gas. The gas bubbles create a foaming effect, resembling a volcanic eruption. This experiment demonstrates chemical reactions.

4. The Rainbow Jar Experiment:
Materials needed: A transparent jar, water, and food coloring.

Procedure:
1. Fill the jar with water, leaving a little space at the top.
2. Add a few drops of different food coloring to the water.
3. Observe the layers of colors formed in the jar.

Explanation:
Different food coloring dyes have different densities, causing them to form distinct layers when added to water. This experiment helps children understand the concept of density and color mixing.

Remember, these experiments should be conducted under adult supervision, and it's important to explain the scientific concepts to the child as they observe the results.