Dissolving
How is water different from other colorless liquids? Try this activity to find out.
Solids aren't the only things that can break apart, or dissolve. See how liquids and gases can dissolve, too.
Observe the similarities and differences in materials (things you can touch, taste, see or feel) by dissolving and recrystallizing them.
Find out which powerful liquid dissolves sugar the best.
Can all liquids dissolve in water? See for yourself.
See if water or detergent solution is better at cleaning lipstick.
Oil and water normally don't mix. See if there is something that can make them come together.