Trina wanted to find out which of her rubber balls can bounce the highest. She dropped the first ball on the cement sidewalk, and the second ball on the grass. How could she improve her experiment?

Jeremiah has been studying the experiments performed by Gregor Mendel in his study of inheritance patterns. He decides that he would like to test the inheritance patterns of tall and short pea plants. Which statement should be his hypothesis?

Which of the following statements is a example of a correctly written, testable hypothesis?

You have a dark-colord piece of cloth and a light-colored piece of cloth. What would be the best way to determine which piece of cloth absorbs the most heat?

Which of the following is a qualitative observation?

Which of the following is a quantitative observation?

In a experiment designed to determine if a specific brand of cat food is causing cats to meow excessively, it would be best to ________.

Students are studying daily ozone levels near a school of asthmatic children. In order to have unbiased results, they made a questionaire for all to fill out at school and didn't mention asthma or ozone. What else could they do to increase accuracy?

Our understanding of the universe has changed greatly over time. Which explains why this has occurred?

Alfred Wegener theorized that continents drift apart from one another and did so in the past.At first, scientists dismissed Wegener. Which of the following helps prove the Continental Drift Theory?

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