IDNLearn.com is the place where your questions are met with thoughtful and precise answers. Find in-depth and accurate answers to all your questions from our knowledgeable and dedicated community members.

Scientific Method - Manipulated and Responding Variables

In the same science fair, Tina asks the question "Does caffeine increase
the heart rate of an earthworm?" In Test 1, shemeasures the heart rate by
looking at the earthworm under a microscope, the earthworm has a heart rate of 50 bpm (beats per minute). In Test 2,
she places a few drops of caffeine on the earthworm's skin and measures the rate again. In this test, the heart rate is 68

8) Tina's experiment should have included a hypothesis. In a complete sentence, suggest a hypothesis for Tina’s


Sagot :

We value your presence here. Keep sharing knowledge and helping others find the answers they need. This community is the perfect place to learn together. IDNLearn.com has the solutions to your questions. Thanks for stopping by, and see you next time for more reliable information.