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  • Stage 1

    Answer 3 out of 4 questions correctly.

Toby has a pond in his backyard. One day, Toby and his mom watch the fish in the pond. The water in the pond is clear.
Later, it rains. The next day, there is a lot of sand, dirt, and silt in the water. Silt is like sand, but it's made of even smaller pieces. Toby wants the water in the pond to be cleaner so he can see the fish again.
What is the problem that Toby wants to solve? Complete the sentence.
The water in the pond is 
clear

. Toby wants it to be cleaner so he can see the fish again. 
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