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Physics
Forces, energy, and movement!
What You'll Learn 🎯
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Light and Refraction
White light contains ALL the colors of the rainbow! Episode 1 reveals them by bending light — refraction separates each color because each bends at a slightly different angle!
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Density and Buoyancy
Denser objects and liquids sink, less dense ones float! Episodes 2 and 5 both demonstrate buoyancy — from dancing raisins to lava lamp blobs!
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Energy Conversion
Episode 6's catapult converts stored elastic potential energy (stretched rubber band) into kinetic energy (flying marshmallow) — energy changes form but never disappears!
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Newton's Third Law
Every push has an equal push back! When the balloon pushes air backward (Episode 3), the reaction force shoots the rocket forward — the same law that launches real space rockets!
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Sound Waves
Sound is a physical pressure wave! Episode 10 makes it visible — sound waves vibrate the plastic wrap, making rice grains literally jump and dance in different patterns at different frequencies!
Physics
What is it?
Physics is the most fundamental science of all — the study of matter, energy, forces, and how they interact. Every other science ultimately builds on physics: chemistry is physics at the atomic level, biology runs on physical and chemical processes, and engineering applies physics to build things that work. Physics explains how rockets fly, how rainbows form, why things float or sink, how energy transforms, and how sound reaches your ears.
Physics is the most-connected topic in Little Lab Challenges Season 1, with six of the ten episodes touching on core physics concepts. Episode 1 (light refraction and the visible spectrum), Episode 2 (buoyancy and CO₂ bubble physics), Episode 3 (Newton's Third Law and thrust), Episode 5 (density and fluid dynamics), Episode 6 (elastic potential energy converting to kinetic energy), and Episode 10 (sound wave mechanics and vibration frequency) all demonstrate fundamental physics principles in completely hands-on, visible ways.
⚡ Physics Is Everywhere in Season 1!
Here is how physics shows up across all six connected episodes: Rainbow Paper (Ep 1) = light wave refraction. Dancing Raisins (Ep 2) = buoyancy and density. Balloon Rocket (Ep 3) = Newton's Third Law, thrust, action-reaction forces. Lava Lamp (Ep 5) = density, fluid buoyancy, immiscibility. Marshmallow Catapult (Ep 6) = elastic potential energy to kinetic energy conversion. Sound Wave Rice (Ep 10) = mechanical wave propagation, vibration, frequency, amplitude. Six experiments, six different branches of physics, all with household materials.
Physics is not just an academic subject — it is the explanation for everything you can see and touch and feel. Why does a ball bounce? Physics. Why does music sound higher when you sing faster? Physics. Why does ice float in your drink instead of sinking? Physics. Why do rockets go to space? Physics. Understanding basic physics at ages 5-8 builds the intuition that makes all later science education more accessible and more exciting.
Learning Path 🛤️
What to explore next!
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Start Here
Engineering
Engineering uses physics — explore applied science first!
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YOU ARE HERE!
Physics
Forces, energy, and movement!
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Next Up
Chemistry
Chemistry is physics at the atomic level — a perfect next step!
For Grown-Ups 👨👩👧
Teaching tips!
👨👩👧 Parent Guide
Physics is the most represented topic across LLC Season 1 — six of the ten experiments demonstrate physics concepts. Recommended order for home exploration: Episode 3 first (Balloon Rocket — most dramatic and immediate demonstration of Newton's Third Law), then Episode 1 (Rainbow Paper — light and color), then Episode 2 (Dancing Raisins — buoyancy), then Episode 5 (Lava Lamp — density), then Episode 6 (Catapult — energy conversion), and finally Episode 10 (Sound Waves — wave physics). Each experiment isolates a different branch of physics, so doing all six gives children a surprisingly comprehensive introduction to the field. The four free printables together form a complete physics observation portfolio.
🏫Teacher Resources
Physics has the broadest NGSS coverage in Season 1. K-PS2-1 (forces, motion): Episodes 3 and 6. K-2-ETS1-3 (engineering design): Episodes 3 and 6. 1-PS4-1 (vibration and sound): Episode 10. 1-PS4-3 (light and materials): Episode 1. 2-PS1-1 (properties of matter): Episodes 2 and 5. 2-PS1-4 (reversible and irreversible changes): Episode 5. Recommended classroom approach: use each physics episode as the launch for a short unit — Episode 3 starts a forces unit, Episode 10 starts a sound unit, Episode 1 starts a light unit. The four free physics printables (Rocket Race Score Sheet, Catapult Blueprint, Color Observation Log, Sound Wave Tracker) all serve as data collection tools for authentic assessment.
📖 Homeschool Guide
With six episodes, physics could serve as a 6-week complete physical science curriculum for K–Grade 2. Week 1: Episode 3 (Newton's Third Law — forces and motion). Week 2: Episode 1 (Light refraction — optics). Week 3: Episode 2 (Buoyancy and density — fluid mechanics). Week 4: Episode 5 (Density layers — fluid dynamics, connects to geology and oceanography). Week 5: Episode 6 (Energy conversion — potential and kinetic energy). Week 6: Episode 10 (Sound waves — wave physics, connects to human anatomy). Each week connects to a different NGSS standard and a different branch of physics. This is the most complete single-topic curriculum pathway in all of LLC Season 1.
More Topics to Explore 🌟
Keep discovering!
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Meteorology
Rain, snow, clouds, and storms!
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Human Anatomy
All about your amazing body!
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Chemistry
Mixing, changing, and reactions!
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