Grade 7 · Science · Unit 6 of 11

Rocks & Minerals

Minerals and the rock cycle

What your child practises

Practises how rocks and minerals make up Earth’s crust, how to tell them apart and how rocks change in the rock cycle.

Prince Edward Island Curriculum curriculum outcome: Earth’s Crust · identifying minerals and rocks, and following the rock cycle

Sample questions

A taste of this unit. In the app, questions change every time and get easier or harder to match your child.

Question 1
Fossils are most often found in rock made of…
- melted magma
- layers of cemented sediment
- volcanic ash only
- cooled lava
Question 2
Why is mining ore sometimes harmful to the environment?
- It can destroy habitats and pollute water
- It always adds new soil
- It makes the air cleaner
- It cools the planet
Question 3
Which kind of rock forms when heat and pressure change an existing rock?
- metamorphic
- sedimentary
- igneous
- mineral
Question 4
A table shows quartz: hardness 7, streak white, glassy lustre. What is quartz’s hardness?
- glassy
- white
- 3
- 7
Question 5
Melted rock that flows out onto Earth’s surface is called…
- magma
- clay
- lava
- sand
Question 6
Which metamorphic rock is made when heat and pressure change limestone?
- marble
- sandstone
- granite
- pumice