Science Unit 3 — Practice Test

Ready to practice?

This quiz has 20 questions: just like the Unit 3 pretest and Lesson 1–3 quizzes — photosynthesis, producers and consumers, food chains and webs, habitats, ecosystems, and how organisms interact.

• Each question shows 4 shuffled choices.
• If you miss one, we move on and come back later (reshuffled).
• Correct answers stay mastered. Progress saves on this device.