1. Click the green add button 2. Draw your prediction 3. Record your prediction 4. Click the green check mark to save your work 5. After you are done experimenting/talking to the teacher record a comment on your prediction to say what happened.
Experiment #7: Water vs Vegetable Oil w/food color Colorful rain in a glass: https://www.facebook.com/watch/?v=2432557596975153 Mel Science Instructions: https://melscience.com/US-en/articles/colorful-rain-glass/?utm_source=FBPost_en&utm_medium=ColorfulRainArticle_en Step 1 (Experiment #2) Vegetable oil – add food coloring (3 colors) Add 3-4 drops of each food color (red, blue, green) (Before adding: “What will happen?”) Stir (After adding and stirring: “Did anything change?”) - Food coloring goes from big drops to lots of tiny drops. “The oils and food colorings don’t mix with each other, forming an emulsion.” Mel Science Step 2 (Experiment #6) Add mixture to a container of cold water (Before adding: “What will happen?”) - oil stays on top “The oily ‘cloud’ releases a flood of colored ‘rain’! Oil and water don’t dissolve in each other, so the liquids remain separate. When the dye droplets reach the oil-water boundary, they dissolve in the water.” Mel Science