Discover a new way to learn with engaging explorations, experiments, and animations in an interactive environment. Learn by doing and see the impact of being involved in what you learn.

Repeat van Helmont’s experiment, as well as a modern follow-up experiment, to show where plants obtain their mass. After learning that plants do not gain mass from soil or water, and conducting experiments that involve weighing plants as they grow, you can establish that plants gain mass from air. Review photosynthesis and all that you learn from the experiments.

• Establish what van Helmont’s experiment was about.
• Explain how plants get their mass.
• Understand the importance of careful measurement when doing scientific investigations.
• Analyze data and develop a conclusion.
• Use math in scientific inquiry.

App features:
• Take charge! Explore biology in an engaging and interactive environment.
• Practice what you learn and receive helpful feedback.
• Investigate challenging topics with step-by-step support.
• Demonstrate what you learn by taking quizzes.
• Want more? Check out the AC library in the App Store.