Let me work through each question step by step.
Question 1: Matter with a definite volume but not a definite shape is a _____
Let me think about the properties of different states of matter:
-
Solids: Have both definite shape AND definite volume (particles are tightly packed)
-
Liquids: Have definite volume but NO definite shape (they take the shape of their container, particles can flow)
-
Gases: Have neither definite shape nor definite volume (particles spread out to fill any space)
The question asks for something with definite volume but NOT definite shape. That matches liquids perfectly.
Answer: B. liquid
Question 2: What term is used to describe the amount of material in an object?
Let me check each option:
-
Density: Mass per unit volume (how much stuff is packed into a space)
-
Mass: The actual amount of matter/material in an object ✓
-
Volume: How much space an object takes up
-
Weight: The force of gravity on an object's mass
"Amount of material" = mass
Answer: B. mass
Question 3: Which is a chemical property?
Chemical properties describe how a substance reacts or changes into new substances. Physical properties can be observed without changing what the substance is.
Let me check each:
-
Ability to rust: This describes how iron reacts with oxygen to form a NEW substance (rust). This is a chemical change! ✓
-
Boiling point: You can measure this without changing water into something else - it's still water when it boils. Physical property.
-
Density: Can be measured without changing the substance. Physical property.
-
Solubility: Whether something dissolves doesn't change its chemical identity. Physical property.
Answer: A. ability to rust
Question 4: _____ is a physical property that allows some materials to attract certain metals.
This is describing magnetism. Magnetism is a physical property because you don't need to change the material's chemical composition to observe it. Magnetic materials like iron, nickel, and cobalt can attract other magnetic metals.
Answer: Magnetism
──────────────────────────────────────
Final Answer:
1. B. liquid
2. B. mass
3. A. ability to rust
4. Magnetism
Parent Tip: Review the logic above to help your child master the concept of matter and its properties worksheet.