Properties of materials lab answers for grade 6 science (free PDF download)

by aicko
28 October 202628 October 2026

The method and the results are on the properties of materials lab. Do the analysis yourself first, then check the answers below.

Quick answer: Materials have properties such as hardness, electrical conductivity, magnetism and flexibility. These answers go with the grade 6 science lab on properties of materials: the graph, the calculations, the uncertainties and the conclusion explained, for all 7 analysis questions.

Properties of materials lab answers for grade 6 science (free PDF download)

Here are the properties of materials lab answers for grade 6 science: graph, calculations, uncertainties and conclusion. First do the lab yourself, then compare, and go back to the lesson if needed.

These model answers use the sample table. Your own table may differ slightly, so check the reasoning and the units rather than matching every number.

Level: Grade 6 science (Year 7 · Class 6) · Curriculum: MS-PS1-3

Contents

Properties of materials lab answers: the analysis explained

Question 1 Conductors

Copper, aluminium and steel light the bulb. All three are metals.

Question 2 Magnetic material

Steel is attracted. Copper and aluminium conduct but are not magnetic.

Question 3 Hardest material

The nail does not mark the steel strip while the others are scratched. Steel is the hardest.

Question 4 Flexible and insulating

Plastic scores 5 and does not light the bulb. Plastic; for example a flexible cable cover.

Question 5 Best handle

Steel resists scratches and bends little (rating 2). Wood also scores 2 and is a heat insulator. Steel or wood, depending on weight and cost.

Question 6 Reliability

Have several students rate each strip and take the average, and use the same overhang and press with the same force. Repeat and average.

Question 7 Improvement

Clamp each strip, hang a fixed mass of 100 g from the free end and measure the sag with a ruler in millimetres. Measure sag in mm.

← Back to the properties of materials lab

Property of a material — A feature you can observe or test

Material that lights a bulb — A conductor

Material that does not light a bulb — An insulator

Metals attracted by magnets — Iron, steel, nickel, cobalt

Is aluminium magnetic? — No

Test for hardness — Scratch it with another material

Hard but breaks when bent — Brittle, like glass

Why handles are plastic or wood — They are poor heat conductors

Does graphite conduct electricity? — Yes

Recycled aluminium saves about — 95 % of the energy

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