---
title: "Testing Materials for Uses"
description: "Give reasons, based on evidence from comparative and fair tests, for the particular uses of everyday materials including metals, wood, and plastic"
canonical: https://lightmysky.com/learn/science/testing-materials-for-uses-mt_e3-_toGuWf
source: https://lightmysky.com/learn/science/testing-materials-for-uses-mt_e3-_toGuWf.md
retrieved: 2026-11-12
---

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# Testing Materials for Uses

Give reasons, based on evidence from comparative and fair tests, for the particular uses of everyday materials including metals, wood, and plastic

Subject: Science · Area: Matter & Materials · Ages 7 to 10
Page: https://lightmysky.com/learn/science/testing-materials-for-uses-mt_e3-_toGuWf

## Ready when they can

- Design a fair test to compare a specific property of two or more materials
- Present test results as evidence for why a material is suited to a particular use
- Explain the link between a material's tested properties and its real-world application

## Lesson: Testing materials for the job

Match a material's properties to its job. A rain cover needs to block water. Tests give evidence for that choice. Results describe the samples and property tested. Holding more weight before bending shows better resistance to bending in that test, not suitability for every job.

To compare water getting through in a set time, use equal-sized samples, equal water amounts and equal times. To compare how much strips bend, keep their size, thickness, support and the force the same. Ask an adult to help. Never test hot pans, sharp pieces or heavy loads yourself.

*(drawing: Imagined results: an adult added equal loads in the same steps to matching strips with the same support. Metal held the greatest load before bending.)*

For a job that needs to hold a load without bending, choose the sample that held the greatest load. To find how much more it held, subtract the smaller result from the larger: 6 kg minus 2 kg is 4 kg.

**Example.** A metal pan body carries heat to the food. Some pans have heat-resistant plastic handles because plastic carries heat more slowly than metal. A handle can still become hot. Do not touch a pan to test it. An adult should check it and use suitable protection.

A waterproof cover must block water. If it also needs to fold, test whether it bends without breaking. Choose a sample that meets both needs. A water test cannot tell you whether a sample will bend.

**Recap.** Fair tests give evidence, and matching that evidence to the job tells you which material to use.

*The lesson, questions and study cards were written for this dataset. Numerical material-test results are illustrative examples, not published measurements.*

## Practice

8 questions on this page, each with its working shown.

## Needs first

- [Choosing the Right Material](https://lightmysky.com/learn/science/choosing-the-right-material-mt_rTn43s8RNX)

## Opens up

- [Advanced Material Properties](https://lightmysky.com/learn/science/advanced-material-properties-mt_Ge4Wtg6QMM)
- [Material Properties Vocabulary](https://lightmysky.com/learn/science/material-properties-vocabulary-mt_MVovx37Xct)