There are many things you can do at home that are fun and educational!
1. Want to see what the world looked like
250 million years ago? It's easy! First, find a map of the world. Then trace
the continents and cut them out. Now try fitting them together like a puzzle.
You've got your own super continent! Back to history
2. When gradual pressure is applied, the mantleis a liquid and flows like
mud. However, if it gets a sharp shock, it turns solid. You can simulate
how the mantle works. All you have to do is add a teaspoon of cornstarch
with a teaspoon of water. Now, gently drag a spoon through the paste. You
see it flows like liquid. Push sharpley and it goes hard.
3. There is a simple experiment to show how shock waves work. You will need
a table, a hammer and some sand. Put some sand (about one cup) on the table.
Now take the hammer and tap the side of the table. Watch what happens to
the sand. Now try tapping the table in different places. What happens?
4. You can see how some waves move with the help of a slinky (a metal one
works best). Attach one end of the slinky to a sturdy object. Now take the
other end of the slinky and pull it back as far as it will go. Then let
go! Watch how the slinky bounces back.
5. You too can make mountains. How? It's easy. You will need two blocks
of wood, some modeling clay, and a friend to help you out. Lay some strips
(about three or four) of modeling clay on top of each other. These represent
rocks. Set a block of wood at each end of the clay. This represents the
colliding continental plates. This is where your friend comes in. Each of
you get on one side of a wood block. Now push. When you both push at the
same time, it is like two continents were coming together. The harder you
push, the more layers crumple. Try using longer pieces of clay. What happens?
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