đ 1. Gravity Would Get Stronger
If Earth was twice as big (and had the same stuff inside, like same density), gravity on the surface would be almost twice as strong.
Youâd feel heavier â if you weigh 50 kg now, it would feel like 100 kg.
Walking, running, jumping would be much harder.
Athletes would struggle. Everyone would feel more tired.
đŹď¸ 2. The Air Would Be Thicker
Stronger gravity means Earth could hold more air.
The atmosphere would be thicker and heavier.
Air pressure would go up, especially near the surface.
It might be harder to breathe, especially for people with health problems.
Weather might get more extreme â stronger storms, more heat trapped.
đ 3. More Natural Disasters
A bigger Earth would have more heat in its core (middle), soâŚ
More earthquakes shaking the land.
More volcanoes erupting.
Mountains might grow taller and form more often. Basically, the planet would be more active and dangerous.
đ 4. Longer Days (Maybe)
If the planet is bigger, it might spin slower because of more mass.
That means days would be longer â maybe 30 hours instead of 24.
More sunlight during the day, more darkness at night.
This would affect sleep, farming, animals, and more.
đ 5. Animals and Plants Would Change
Living things would adapt to stronger gravity:
Animals would be shorter and stronger â tall animals like giraffes might not survive.
Birds might struggle to fly or not fly at all.
Plants would grow closer to the ground, maybe with thicker stems.Everything would look different.
đ 6. Harder to Go to Space
To escape Earthâs gravity, rockets would need way more power.
Space travel would be super expensive and difficult.
Satellites might need extra fuel or new designs.
We might be stuck on Earth for a long time.
đ§ 7. Oceans Would Be Deeper
With more gravity, Earth might pull water closer to the ground.
Oceans would get deeper.
Coastlines could change â some land might go underwater.
Sea creatures would need to adjust to stronger pressure.
đ 8. The Whole World Would Be Different
A double-sized Earth would be a tougher place to live:
People would be stronger or shorter.
Technology, travel, farming â everything would have to change.
Life would go on, but it would be harder and very different from now.
https://youtu.be/5w69zqiDJJg?si=jx4CTN9cr6cgN8vF
What if Earth were twice as bigâwould we all feel heavier?
Yes, absolutely. If Earth doubled in size and had the same density, gravity would be about twice as strong.
Youâd feel twice as heavy.
If you weigh 40 kg now, it would feel like 80 kg.
Just standing up, walking, or lifting stuff would take more energy.
Over time, humans might evolve to be shorter and stockier to handle the weight.
Would we still have 24-hour days if Earth doubled in size?
Not likely. A bigger planet could spin more slowly, which meansâŚ
Days could be longer, maybe 30 hours or more.
That would change how we sleep, work, and even how plants grow.
If the spin stayed the same, days could still be 24 hours, but that depends on how Earth forms and moves.
If Earth got bigger, would it still have the same gravityâor would we have trouble walking?
It wouldnât have the same gravity.
Bigger Earth = stronger gravity = more force pulling you down.
Weâd definitely have trouble walking, running, and jumping at first.
Our muscles and bones would have to adapt or grow stronger.
Moving would feel like wearing a heavy backpack all the time.
Would animals grow bigger or smaller on a bigger Earth?
Theyâd probably grow smaller or more compact.
Bigger animals would struggle under strong gravity.
Tall creatures like giraffes might not survive.
Most animals would likely be shorter, heavier, and stronger to support their bodies better.
Birds might have trouble flying or stop flying completely.
Could airplanes still fly the same way if Earth were twice as large?
Not exactly.
Thicker air from stronger gravity means more resistance.
Planes would need more powerful engines to lift off.
Runways would have to be longer, and flights would use more fuel.
Some small aircraft might not be able to fly at all unless redesigned.