វិទ្យាសាស្ត្រ
1,546 ប្លង់មាន • 11 ប្រភេទរង
រុករកប្រភេទរង
ប្លង់ (1,546)

Saving Tomato Seeds — The Fermentation Method
ដោយ Bob
វិទ្យាសាស្ត្រដំណាំ

Saving Carrot Seeds — The Two-Year Biennial
ដោយ Bob
វិទ្យាសាស្ត្រដំណាំ

Saving Bean and Pea Seeds — The Easiest First Seed to Save
ដោយ Bob
វិទ្យាសាស្ត្រដំណាំ

Overwintering Roots for Seed — Getting a Biennial Through Winter
ដោយ Bob
វិទ្យាសាស្ត្រដំណាំ

Aryabhata's Spinning Earth — A Torch, a Ball, and Day and Night
ដោយ Astro
មជ្ឈិមសតវត្ស

Zero and Place-Value — Build an Abacus and Count Like the World Does
ដោយ Mark
មជ្ឈិមសតវត្ស

Projectile Motion — Launch a Ball and Measure Its Flight
ដោយ Penny
Scientific Revolution (1600–1760)

Hooke's Law — Stretch a Spring and Find Its Stiffness
ដោយ Penny
School Projects 11-15

The Pendulum — Time a Swing and Weigh Gravity
ដោយ Martin
Scientific Revolution (1600–1760)

The Sand Reckoner — Count the Grains and Tame Huge Numbers
ដោយ Mark
បុរាណ

Air Has Weight — The Upside-Down Glass and Torricelli's Barometer
ដោយ Penny
Scientific Revolution (1600–1760)

Boyle's Law — Squeeze a Syringe of Air
ដោយ Charlie
Scientific Revolution (1600–1760)

Magic Squares — Arrange Numbers So Every Line Adds the Same
ដោយ Mark
បុរាណ

The Mercator Map — Peel an Orange and See Why Flat Maps Lie
ដោយ Mark
Renaissance (1400–1600)

Snell's Law — Measure How Light Bends (Laser and Protractor)
ដោយ Penny
Scientific Revolution (1600–1760)

Trigonometry — Build a Clinometer and Measure a Tree's Height
ដោយ Mark
បុរាណ

Galileo's Falling Bodies — Race a Ball Down a Ramp
ដោយ Penny
Scientific Revolution (1600–1760)

Kepler's Laws — Draw a Planet's Ellipse with Two Pins and a String
ដោយ Astro
Scientific Revolution (1600–1760)

The Number e — Grow Money and Meet the Constant of Change
ដោយ Mark
Scientific Revolution (1600–1760)

The Birth of Probability — Roll the Dice and Find the Odds
ដោយ Mark
Scientific Revolution (1600–1760)

Descartes' Coordinates — Plot a Treasure Map and Draw with Numbers
ដោយ Mark
Scientific Revolution (1600–1760)

Napier's Logarithms — Build a Paper Slide Rule and Multiply by Sliding
ដោយ Mark
Scientific Revolution (1600–1760)

Newton's Method — Chase a Root Down Tangent Lines You Draw
ដោយ Mark
Scientific Revolution (1600–1760)

Pascal's Triangle — Build a Pyramid of Numbers by Adding
ដោយ Mark
Scientific Revolution (1600–1760)