🥤Mixing can make a new thing. How can you tell?

🫧Bubbles of gas can be a clue.

🥤Vinegar has an acid in it. Baking soda is a base.

🫧Acids and bases react. Vinegar and baking soda fizz.

🫧The fizz bubbles are a gas.

💧Oil floats on top of water.

🥤Shake them up and you get two layers.

🥤It lasts a short time. Then oil and water come apart.

💧Now try salt. Salt dissolves in water.

🥤Ask a grown-up to shake oil and water.

Words to know

• acid: like in vinegar
• base: like baking soda
• react: change together
• dissolves: mixes right in