Amy and her brother Sam are finding out about rocks.
They have come back from holiday with several different kinds of rocks and they're having fun trying to sort them out.
"How shall we sort them, Amy?" Sam wanted to know.
"How about seeing if they're hard or soft?" suggested Amy.
"But aren't all rocks hard - isn't it going to hurt if I drop one on my toe?" asked Sam.
"Well, they might be heavy, but not all of them are hard. Some wear away quite easily," Amy told Sam.
Let's see how their rock investigation turns out.
View the activity introduction for more information on the topic
Read the question aloud
Open the accessibility toolbar to change fonts and contrast, choose a different language, use a ruler and more
Question
Do you want to skip questions and finish?
Hold up, it looks like there may be an issue with your spelling. Why not try it again?
You need to check your answer before you proceed. Are you sure you want to skip?
Teacher explanation