1. Lemon juice and water. We found that it created a homogeneous mixture.
2. Lemon juice, water, and oil. We found that it created a heterogeneous mixture.
3. Milk and chocolate topping. We found that it created a homogeneous mixture.
4. Milk, chocolate topping, and lemon juice. We found that a chemical reaction occurred because a new material was formed (gas - which we could see because of the bubbles) and that it no longer looks like the original materials as the properties changed.
6. Bicarb Soda and vinegar. We found that a chemical reaction occurred because a new material was formed (gas - which we could see because of the bubbles) and that it no longer looks like the original materials as the properties changed.
