LI - Observe how an egg reacts in fresh vs salt water to understand the concept of density.
we put a egg in plain water and it sunk, then we added a tone of salt and it floated.
the egg floated because the salt water is denser then the egg.
LI - identify our prior knowledge about science.
1.what do you know about science - science is a way of explaining how and why the world works.
2. what would you like to learn about science - how to make something explode