Which rock size is bigger: gravel or pebble?
Which rock size could be as big as a car?
What was the smallest rock size?
Which rock size is bigger: silt or sand?
What are two ways we can sort rocks?
True or False: rocks make rock dust when they are rubbed together?
True or False: rocks may change color when they are put into water?
What are the two techniques we used to sort rock sizes?
What do you call a person who studies rocks?
Which one of these is NOT a type of rock: Basalt, Abrasive, Tuff, Scoria?
How can we observe soil: using screens or water?
What three things make up soil?
