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K–12
math + science

Now playing Projectile motion · physics

for a kid who loves:

The concept stays. The way in changes.

Math, physics, chemistry, biology. Here are four kids and four ways in.

PHYSICSGrade 9

Projectile motion

for a kid who loves football

The ball leaves the boot, rises, slows at the top, then drops. That arc is the whole lesson: sideways speed stays put while gravity works on the up-and-down.

Textbook version: A projectile follows a parabolic path under constant acceleration.

CHEMISTRYGrade 10

Stoichiometry

for a kid who loves cooking

Doubling a recipe never changes the ratio of flour to eggs. Balanced equations work the same way: scale the amounts, keep the ratio.

Textbook version: Use mole ratios from the balanced equation to convert between reactants and products.

BIOLOGYGrade 7

Photosynthesis

for a kid who loves farm-building games

A crop needs light, water and air to grow. Photosynthesis is how the plant turns those three into sugar, its stored energy, a bit like filling an XP bar.

Textbook version: Photosynthesis converts light energy into chemical energy stored in glucose.

MATHGrade 8

Exponential growth

for a kid who loves levelling up in games

Every level asks for double the XP of the last one. Early levels fly by, late ones take forever, and that's exactly what exponential growth feels like.

Textbook version: An exponential function has the form y = a · bˣ, where b is greater than 1.

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