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Book 30, Question 43 · Video

Why do some ponds dry up in late summer?

Video · 1:48 · Crafty Clover explains, from A Million Whys Book 30

Ponds are shallow, so the Sun and wind can evaporate their water quickly. If little rain falls, the water going out is more than the water coming in, and the pond shrinks. Mud cracks and plants grow where water used to be. Animals that live in these ponds have ways to cope: some bury in mud, some fly away, and some lay eggs that wait for rain.

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What Crafty Clover says in this video

Intro

Hi there, curious minds! I'm Crafty Clover! Let's discover something amazing. Why do some ponds dry up in late summer?

The Big Idea

Some ponds shrink or dry up in late summer! Where did the water go? Let's find out.

Shallow Water

Step one: Shallow Water. Ponds are shallow, so the Sun and wind can evaporate their water quickly. The water turns into vapor and rises into the air.

More Out Than In

Step two: More Out Than In. If little rain falls, the water going out is more than the water coming in. The pond shrinks, mud cracks, and plants grow where water used to be.

Animal Plans

Step three: Animal Plans. Animals that live in these ponds have ways to cope. Some bury themselves in mud, some fly away, and some lay eggs that wait for rain.

A Closer Look

Let's take a closer look! Evaporates. Evaporates. Polygon shapes. For next rain.

Quick Facts

Quick facts! Dried mud forms polygon-shaped cracks. Shallow water evaporates fast. Some animals bury in mud. Eggs wait for rain.

Think Like a Scientist

Now, think like a scientist! Fill a shallow dish with water. Set it outside. Measure the water level each day. Write down the numbers. How much disappeared?

Outro

Ponds are shallow, so sun and wind evaporate their water quickly, and if little rain falls, more water leaves than arrives and the pond shrinks. Animals cope by burying in mud, flying away, or laying eggs that wait for rain. Science is amazing! Remember, every big discovery starts with a small question. Keep looking, keep learning, and keep asking why! Crafty Clover can be found on Amazon Books, Google Bookstore, and Apple Books. Available for purchase or download! Bye for now!

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