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What’s a cell? An organelle? A ganglion? An acromion?

Eighth grade biology is gross anatomy and basic physiology. It’s systems, organs, and connecting the dots between what happens in your head and your foot when your toe wiggles. The National Center for Education Statistics says science scores for eighth-graders have inched up continuously since 2007, but on the whole, are still below what it considers proficient. Think you can remember what you learned back then? Take our test, with questions compiled from standardized tests in New York, Massachusetts, Virginia, and Pennsylvania. Find out: Can you out-science an eighth-grader?


A scientist is comparing two body cells of a multicellular organism. Which of the following is most likely identical?*

Muscle cells need to quickly convert energy from food molecules into a usable form. For this reason, which of the following do muscle cells have in greater numbers than most other types of cells?*

Which of the following parts of the human body is most complex?*

Human sweat is the direct result of which life functions?*

Which word represents the basic unit of heredity in living organisms?*

Most hormones are produced by which human organ system?*

Which human body systems work directly together to allow locomotion?*

Which gas is transported by the circulatory system in humans and is used by cells during respiration to release energy stored in food?*

The human respiratory system is responsible for removing*

Which pathway do most nutrients take after a person takes a bite of food?*

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