အနုပညာ
အလှအပနှင့် ကျန်းမာရေး
လက်မှုအနုပညာ
ယဉ်ကျေးမှုနှင့် သမိုင်း
ဖျော်ဖြေရေး
ပတ်ဝန်းကျင်
အစားအစာနှင့် အချိုရည်
ပြောင်းပြန်အင်ဂျင်နီယာပညာ
သိပ္ပံပညာများ
အားကစား
နည်းပညာ
ဝတ်ဆင်နိုင်သောပစ္စည်းများ
ဘလူးပရင့်များသိပ္ပံပညာများ

သိပ္ပံပညာများ

ဘလူးပရင့် ၇၃၁ ခု ရရှိနိုင်သည် • အမျိုးအစားခွဲ ၁၁ ခု

ဘလူးပရင့်များ (၇၃၁)

Saving Squash Seeds — Hand-Pollination to Keep Them Pure

Saving Squash Seeds — Hand-Pollination to Keep Them Pure

Bob မှBE

သီးနှံသိပ္ပံ

၂၈
Saving Tomato Seeds — The Fermentation Method

Saving Tomato Seeds — The Fermentation Method

Bob မှBE

သီးနှံသိပ္ပံ

၃၁
Saving Carrot Seeds — The Two-Year Biennial

Saving Carrot Seeds — The Two-Year Biennial

Bob မှBE

သီးနှံသိပ္ပံ

၃၁
Saving Bean and Pea Seeds — The Easiest First Seed to Save

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

Bob မှBE

သီးနှံသိပ္ပံ

၁၆
Overwintering Roots for Seed — Getting a Biennial Through Winter

Overwintering Roots for Seed — Getting a Biennial Through Winter

Bob မှBE

သီးနှံသိပ္ပံ

၂၆
Aryabhata's Spinning Earth — A Torch, a Ball, and Day and Night

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

Astro မှIS

အလယ်ခေတ်

၂၉
Zero and Place-Value — Build an Abacus and Count Like the World Does

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

Mark မှFI

အလယ်ခေတ်

၃၁
Projectile Motion — Launch a Ball and Measure Its Flight

Projectile Motion — Launch a Ball and Measure Its Flight

Penny မှDK

Scientific Revolution (1600–1760)

၂၀
Hooke's Law — Stretch a Spring and Find Its Stiffness

Hooke's Law — Stretch a Spring and Find Its Stiffness

Penny မှDK

School Projects 11-15

၂၁
The Pendulum — Time a Swing and Weigh Gravity

The Pendulum — Time a Swing and Weigh Gravity

Martin မှNO

Scientific Revolution (1600–1760)

၂၁
The Sand Reckoner — Count the Grains and Tame Huge Numbers

The Sand Reckoner — Count the Grains and Tame Huge Numbers

Mark မှFI

ရှေးဟောင်း

၂၄
Air Has Weight — The Upside-Down Glass and Torricelli's Barometer

Air Has Weight — The Upside-Down Glass and Torricelli's Barometer

Penny မှDK

Scientific Revolution (1600–1760)

၂၄
Boyle's Law — Squeeze a Syringe of Air

Boyle's Law — Squeeze a Syringe of Air

Charlie မှDE

Scientific Revolution (1600–1760)

၃၁
Magic Squares — Arrange Numbers So Every Line Adds the Same

Magic Squares — Arrange Numbers So Every Line Adds the Same

Mark မှFI

ရှေးဟောင်း

၁၇
The Mercator Map — Peel an Orange and See Why Flat Maps Lie

The Mercator Map — Peel an Orange and See Why Flat Maps Lie

Mark မှFI

Renaissance (1400–1600)

၁၈
Snell's Law — Measure How Light Bends (Laser and Protractor)

Snell's Law — Measure How Light Bends (Laser and Protractor)

Penny မှDK

Scientific Revolution (1600–1760)

၂၂
Trigonometry — Build a Clinometer and Measure a Tree's Height

Trigonometry — Build a Clinometer and Measure a Tree's Height

Mark မှFI

ရှေးဟောင်း

၂၄
Galileo's Falling Bodies — Race a Ball Down a Ramp

Galileo's Falling Bodies — Race a Ball Down a Ramp

Penny မှDK

Scientific Revolution (1600–1760)

၁၆
Kepler's Laws — Draw a Planet's Ellipse with Two Pins and a String

Kepler's Laws — Draw a Planet's Ellipse with Two Pins and a String

Astro မှIS

Scientific Revolution (1600–1760)

၂၈
The Number e — Grow Money and Meet the Constant of Change

The Number e — Grow Money and Meet the Constant of Change

Mark မှFI

Scientific Revolution (1600–1760)

၁၉