Mini-Quiz: Mixtures

1. Why does oil float to the top when mixed with water?

   The substances don't mix well, and oil is usually less dense than waterThat is correct. You know about chemical mixtures. The polarity of the oil pushes it to the topSorry, not correct. Try another button. It is water that floats to the topGood try, but not right. Select another answer.

2. How can you tell that paint materials have been separating?

   The colors run when you paintSorry, not correct. Try another button. The paint is dried up and hard after you open the canOops! Wrong answer. Re-read the question and try again. There is a thick gunk at the bottom of the paintCorrect. And you're good looking too!

3. Why is blood a simple mixture?

   It is a mixture of type A, B or O bloodGood try, but not right. Select another answer. You can separate the partsThat is correct. You know about chemical mixtures. Blood is a red liquid and not a mixtureOops! Wrong answer. Re-read the question and try again.

Pick an answer to see instant feedback. Re-read the lesson if you miss one.