Oil on the Top or Bottom?

Is the Oil on the Top or Bottom? .mp4

Obj. 11d., 22a.

Instructions:

  1. Gather your materials:

    1. Food coloring and dropper (learning kit)

    2. 1 cup water

    3. 1 cup oil (vegetable)

    4. ½ cup 70% alcohol (can buy at a super or pharmacy)

    5. 2 glass, clear cups

    6. 1 measuring cup

  2. In one glass cup add ½ cup water then slowly add ½ cup oil. Observe.

  3. In another glass cup add ½ cup oil then slowly add ½ cup alcohol. Observe

  4. Mix the remaining ½ cup water with food coloring. Add it into the mixtures with the dropper. Observe.

InterACTions:

  • What do you notice about the oil?

  • What happens to the food coloring when you drop it in?

  • What do you think is happening?

  • Why don’t you think the liquids mix?

  • What are you wondering?

  • What else do you want to try?

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