Students will be able to develop and explain a particle-level model to describe their observations of water dissolving salt, the water evaporating, and the salt crystals re-forming. Dissolving a solid ...

3. Take three M&Ms of the same color and put one in each cup. 4. Swirl each cup for about 20 seconds to see if one liquid is better than another at dissolving the candy coating. The coating on the M&M ...

The water is dissolving the salt.Place the egg in the water again. How does it react? Let’s observe what happens to the egg when we add more salt. The egg begins to float! Now we know that our ...