Book 6, Question 12 · Video
Why Does Seaweed Pile on the Beach?
Storms and strong waves tear seaweed loose. Many seaweeds have floats, so they drift on the water. When the tide drops, they are left in a line on the sand.
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What Crafty Clover says in this video
Intro
Hey there, curious minds! I'm Crafty Clover! Let's discover something amazing. Why does seaweed pile on the beach?
The Big Idea
Storms and strong waves tear seaweed loose. Many seaweeds have floats, so they drift on the water. When the tide drops, they are left in a line on the sand. That smelly pile is food and a hiding place for beach bugs and birds.
Waves Tear It Loose
Step one: waves tear it loose. Seaweed grows attached to rocks by holdfasts. Storms and strong waves can rip some of it free. Kelp and other seaweeds grow in the sea, and a storm can tear up whole plants in one night.
It Floats Toward Shore
Step two: it floats toward the shore. Some seaweeds have little gas-filled floats. The wind and waves push them toward the beach. Seaweed floats because of the gas bladders on some kinds, and others float simply because they are light.
A Pile Stays on Sand
Step three: a pile stays on the sand. When the water falls, the plants stay behind. They form a line right where the tide stopped. The tide leaves them in a line, like the edge of a puddle left behind after the rain.
A Closer Look
Let's take a closer look at a seaweed pile! A kelp blade is the long, leafy part. A float bladder holds gas so it floats. Tiny sand hoppers feed on the rotting plants. And a wrack line is the line of seaweed left by the tide.
Quick Facts
Quick facts! Some piles hide stinging animals, so look and do not poke. The pile is food for beach bugs and birds. Do not haul armloads home without a grown-up. It slowly rots and returns nutrients.
Think Like a Scientist
Now, think like a scientist! Find a seaweed line with a grown-up. Look closely for tiny hopping animals, without touching. Notice whether the pile is a line or a lump. Who eats the rotting plants? Scientists look carefully and stay safe. Happy exploring!
Outro
That pile is a leftover garden the tide set down! Crafty Clover can be found on Amazon Books, Google Bookstore, and Apple Books. Available for purchase or download! Bye for now!