Hello Sienna! There are lots of different sizes of Moon rocks just like there are lots of different sizes of rocks on Earth. Some of the Moon rocks are less than a centimetre and are know as ‘lunar soils’! Some of the rocks are bigger than a meter in size and are called boulders. The rocks I study had to be the right size to fit into the spacecraft for the astronauts to bring them back! That means that they are usually small enough to put on the palm of your hand but they are large enough to see and enjoy! : -)
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