VÍSINDI
1.933 teikningar tiltækar • 11 undirflokkar
Skoða undirflokka
Teikningar (1.933)
Saving Maize Seeds — The Wind-Pollinated Outbreeder
eftir Bob
Ræktunarvísindi
Saving Lettuce Seeds — Letting the Leaf Crop Bolt
eftir Bob
Ræktunarvísindi
Saving Squash Seeds — Hand-Pollination to Keep Them Pure
eftir Bob
Ræktunarvísindi
Saving Tomato Seeds — The Fermentation Method
eftir Bob
Ræktunarvísindi
Saving Carrot Seeds — The Two-Year Biennial
eftir Bob
Ræktunarvísindi
Saving Bean and Pea Seeds — The Easiest First Seed to Save
eftir Bob
Ræktunarvísindi
Overwintering Roots for Seed — Getting a Biennial Through Winter
eftir Bob
Ræktunarvísindi
Aryabhata's Spinning Earth — A Torch, a Ball, and Day and Night
eftir Astro
Miðaldir
Zero and Place-Value — Build an Abacus and Count Like the World Does
eftir Mark
Miðaldir
Projectile Motion — Launch a Ball and Measure Its Flight
eftir Penny
Scientific Revolution (1600–1760)
Hooke's Law — Stretch a Spring and Find Its Stiffness
eftir Penny
School Projects 11-15
The Pendulum — Time a Swing and Weigh Gravity
eftir Martin
Scientific Revolution (1600–1760)
The Sand Reckoner — Count the Grains and Tame Huge Numbers
eftir Mark
Forn
Air Has Weight — The Upside-Down Glass and Torricelli's Barometer
eftir Penny
Scientific Revolution (1600–1760)
Boyle's Law — Squeeze a Syringe of Air
eftir Charlie
Scientific Revolution (1600–1760)
Magic Squares — Arrange Numbers So Every Line Adds the Same
eftir Mark
Forn
The Mercator Map — Peel an Orange and See Why Flat Maps Lie
eftir Mark
Renaissance (1400–1600)
Snell's Law — Measure How Light Bends (Laser and Protractor)
eftir Penny
Scientific Revolution (1600–1760)
Trigonometry — Build a Clinometer and Measure a Tree's Height
eftir Mark
Forn
Galileo's Falling Bodies — Race a Ball Down a Ramp
eftir Penny
Scientific Revolution (1600–1760)
Kepler's Laws — Draw a Planet's Ellipse with Two Pins and a String
eftir Astro
Scientific Revolution (1600–1760)
The Number e — Grow Money and Meet the Constant of Change
eftir Mark
Scientific Revolution (1600–1760)
The Birth of Probability — Roll the Dice and Find the Odds
eftir Mark
Scientific Revolution (1600–1760)
Descartes' Coordinates — Plot a Treasure Map and Draw with Numbers
eftir Mark
Scientific Revolution (1600–1760)