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Science guides
Clear explanations of moon phases, the scientific method, the human body, genetics and hands-on experiments.
5 guides
Students · Teachers · Parents · 6 min read
Moon Phases Explained: Why the Moon Changes Shape
The moon never stops being lit — we just see different amounts of its sunlit half. The eight phases, a lamp-and-ball demo, and the misconception almost everyone has.
Read the guide →Students · Teachers · Parents · 6 min read
The Scientific Method for Kids: Independent, Dependent and Controlled Variables
What makes a test fair, how to spot each kind of variable, and a paper-towel experiment you can run at home or in class tomorrow.
Read the guide →Students · Teachers · Parents · 6 min read
How the Circulatory System Works: A Guide for Grades 5–8
The heart, blood and blood vessels in plain language — the path blood takes, what each part does, and the questions students most often get wrong.
Read the guide →Teachers · Parents · Students · 5 min read
Plan a Fair Science Test with a Paper Helicopter
Explore variables, repeat measurements and interpret results with a low-cost paper helicopter investigation for grades 4–7.
Read the guide →Students · Teachers · 6 min read
Punnett Squares Step by Step (with Practice Problems)
How to set up a monohybrid cross, read genotype and phenotype ratios, and work backwards from offspring to parents.
Read the guide →