lessonfieldWhat they’re learning
Your child is learning to observe and classify rocks and minerals using properties such as colour, lustre, hardness, texture, and streak. They also learn that rocks form through different processes.
Explain it to my child
Rocks are made of one or more minerals. Minerals have characteristic properties that scientists use to identify them.
Try it together
Collect a few ordinary rocks from permitted locations. Compare colour, texture, visible grains, shininess, and hardness using safe non-destructive observations.
Practice
- What is a mineral?
- Name two properties used to compare minerals.
- Are all rocks made of exactly one mineral?
- Why is colour alone often not enough to identify a mineral?
- What does hardness describe?
Check understanding
- Can your child use several observable properties rather than colour alone?
- Can they explain the relationship between rocks and minerals?
Parent answer guide
- A naturally occurring solid with characteristic composition/structure
- Hardness, lustre, streak, colour, texture, etc.
- No
- Different minerals can share colours and one mineral can vary
- Resistance to scratching
Ontario curriculum connection
Grade 4 · Science & Technology
Earth and Space Systems · Rocks and Minerals
Curriculum expectation: Specific expectation omitted because Lessonfield has not yet verified an expectation-level mapping for this guide.
Ontario Curriculum, Science and Technology, Grades 1–8 (2022) ↗