Objective

By the end of this lesson, you will be able to explore scientific concepts through fun Lego experiments and understand how different materials interact with each other.

Materials and Prep

Materials:

• Lego bricks of various sizes and colors
• A small container of water
• A small container of oil
• A small container of vinegar
• A small container of baking soda

Prep:

• Set up a designated workspace for your Lego experiments.
• Have paper towels ready for any spills or messes.

Activities

1. Build a Lego boat and test if it floats in water. Observe what happens.

2. Create a Lego volcano by stacking bricks and adding baking soda and vinegar. Watch the eruption!

3. Build a Lego car and experiment with different surfaces to see how far it travels.

Talking Points

• When objects float in water, they displace water. This means they push the water out of the way. Can you think of other things that float?

"When something floats, it's like making room for itself in the water. It's like a little water dance party!"

• When we mix baking soda and vinegar together, they create a chemical reaction that produces gas. This gas builds up and creates the bubbling effect you see in the volcano. Isn't that cool?

"When baking soda and vinegar get together, they throw a bubbly party! It's like a mini volcano right in front of us!"

• Friction is what slows down the movement of our Lego car on different surfaces. Smooth surfaces have less friction, so the car can travel farther. Can you think of other examples of friction in your daily life?

"Friction is like a little speed bump for our Lego car. The smoother the road, the faster our car can go!"