The CurioTree Show | Bilingual STEM Worksheets, Quizzes & Learning Hub

🔥 FEATURED EPISODE 1 • PHYSICS & MATH

Episode 1: Why Did It Stop?! (Friction, F=m×a & The 45° Launch)

Watch the episode on YouTube, then download the 1-page printable Lab Worksheet & Answer Key below!

Why Did Build-O-Bot's Skateboard Stop on the Carpet?

When Build-O-Bot's skateboard grinds to a halt on the treehouse rug, Zara and Tess zoom in 1,000x to reveal microscopic Velcro-like carpet bumps creating Friction (μ). Then Milo applies Newton's Second Law (F = m × a) and Nova calculates the optimal 45° launch angle!

Ff = μ × N (Friction) F = m × a (Newton's 2nd Law) θ = 45° (Max Trajectory Range)

▶ Watch on YouTube (🇺🇸 English) ▶ Ver en YouTube (🇪🇸 Español)

📄 CLASSROOM & HOME PRINTABLE PDF

Episode 1 Printable Worksheet + Mini-Lab Guide

Ready-to-print 8.5×11" PDF activity sheet for Grades 2–6. Includes visual formulas, 4 review questions, the "Ramp & Friction Challenge" table, and a Teacher/Parent Answer Key!

Part 1: Visual Formula Reference (μ, F=m×a, 45° Arc)
Part 2: 4 Multiple-Choice & Math Calculation Problems
Part 3: Hands-On Book Ramp & Towel Friction Mini-Lab
Part 4: Complete Teacher & Parent Answer Key

⬇ Download English Worksheet PDF (US Letter) ⬇ Descargar Ficha en Español PDF (Carta)

🎮 INTERACTIVE EPISODE 1 CHALLENGE

3-Question CurioQuiz: Unlock the Physics Master Badge!

Answer all 3 questions from Episode 1 to earn +150 XP and unlock the official Milo & Zara Physics Badge!

🏅 Score: 0 / 3 Answered

Explore Episodes & Worksheets by Subject

New bilingual episodes every week across Science, Math, Cooking Science, and Medicine!

EPISODE 1 • LIVE NOW

Why Did It Stop?! (Friction & 45° Jumps)

Microscopic carpet friction (μ), Newton's 2nd Law (F=m×a), and why 45° gives the longest jump.

📄 PDF Worksheet & Quiz

EPISODE 2 • COOKING & CHEMISTRY

Why Does Bread Rise & Turn Golden?!

Zara zooms in 1,000x on hungry yeast bubbles producing CO₂ gas and the 150°C Maillard browning reaction!

EPISODE 3 • MEDICINE & BODY

How Do White Blood Cells Fight Germs?!

Inside the human immune system: how macrophage scouts and Y-shaped antibodies tag and trap invaders!

EPISODE 4 • ENGINEERING & MATH

Why Don't Skyscrapers Tip Over in Wind?!

Milo and Nova test triangle trusses and build a giant swinging Tuned Mass Damper pendulum at the top!

Meet the CurioTree Show Crew

Five curious explorers solving everyday mysteries inside the CurioTree Lab!

Zara

Chemistry, Cooking & Medicine

Loves kitchen experiments, molecular reactions, and how the human body works.

Milo

Physics & Engineering

Builds ramps, boosters, and machines using Newton's laws of motion and force.

Tess

1,000x Holo-Zoom & Tech

Activates the treehouse Holo-Scope to zoom in 1,000x on atoms, cells, and surfaces.

Nova

Math, Angles & Strategy

Calculates exact angles, speeds, and formulas so every experiment hits the target.

Build-O-Bot

Robot Test Pilot

The crew's cheerful robot sidekick who test-drives every rocket, ramp, and recipe!

Teacher, Parent & Student Reviews + Topic Voting

Rate Episode 1, share how you used the worksheet, or vote on which mystery we animate next!

⭐ Rate & Review Episode 1

Average Rating: 4.9 / 5.0 ⭐ from Teachers, Parents & Students

🗳️ Vote on the Next Episode Question!

Upvote your favorite question below, or submit a new question for Zara, Milo, Tess, Nova & Build-O-Bot!

How the World Works — Interactive Worksheets, Quizzes & Lab Guides!