Anchor ice

Anchor ice is like ice cubes that form on the bottom of a river or lake when the water is really cold. It's called "anchor" because it sticks to things on the bottom, like rocks or plants. Imagine you have a cup of water and you put some ice cubes in it. But instead of them floating on top, they stick to the bottom of the cup. That's what anchor ice is like!

Sometimes, anchor ice can cause problems for boats or fish. If there's a lot of anchor ice in a river, it can make it difficult for boats to move through the water. It can also make it hard for fish to breathe because the ice takes up space where oxygen can be found. But anchor ice is also really important for keeping the river healthy. It helps to clean the water and provides a home for different types of bacteria and other tiny creatures. So even though it can sometimes cause problems, anchor ice is a really important part of the river ecosystem!