Meaning: This sentence describes the branches of the tree being too high for the children to reach the ball.
Choice of Words: Reach is a verb that means to extend your arm or hand in order to touch or get something.
Alternative Expressions
The branches are too tall, I can't get them.
Meaning: This means that the branches of the tree are too high for someone to be able to reach them. It's like saying, The branches of the tree are so tall that I can't reach them.
Choice of Words:Tall means that something is high or long in height. Get means to obtain or receive something. When you put these words together, "The branches are too tall, I can't get them" means that the branches of the tree are too high for someone to reach or obtain.
I can't reach the branches because they're too high up.
Meaning: This means that the branches of the tree are too high for someone to be able to reach them. It's like saying, The branches of the tree are so high up that I can't reach them.
Choice of Words:Because is a conjunction that is used to connect two clauses and show why something is happening. When you put these words together, "I can't reach the branches because they're too high up" means that someone is unable to reach the branches of the tree because they are too high in the air.