Learning objectives
Knowledge
- To determine the hardness of materials and link this to their uses.
Working scientifically
- To evaluate the hardness test to determine the degree of trust in the results.
Success criteria
Knowledge
- I can define
This content is for subscribers only. Join for access today.
National curriculum
Science
Properties and changes
This content is for subscribers only. Join for access today.
Cross-curricular links
British values
-
This content is for subscribers only. Join for access today.
Before the lesson
This content is for subscribers only. Join for access today.
Lesson plan
Recap and recall
Before starting this unit, check the children can recall information from the units Science, Year 1/2 (B), Materials: Uses of everyday materials and Science, Year 3/4 (B), Materials: States of matter: The names of a range of materials, including wood, metal, plastic, glass, brick, rock, paper and cardboard. The suitability of these materials for particular uses. …
This content is for subscribers only. Join for access today.
Extended-mode explainer videos
How to extend your display to view the lesson page and preseantion mode simultaneously. Choose your operating system below to watch the video
If you need further support with extending your display,
please contact [email protected].
Extended-mode explainer video: For Mac
Extended-mode explainer video: For Windows
Adaptive teaching
Pupils needing extra support
Should use the Knowledge organiser to help them define and sort hard and soft materials; could use the activity Resource: Hardness test variables (support), which provides a list of variables to choose from when evaluating their scratch test.
Pupils working at greater depth
Should test additional materials that produce ambiguous results, such as soft materials like foam, sponge and cotton wool (as these materials deform easily, they will move away from the nail as it scratches so they may not scratch despite being soft); should be encouraged to discuss why these soft materials do not scratch easily; could choose an extension activity relating to hardness from the Resource: Stretch and challenge: Properties and changes.
This content is for subscribers only. Join for access today.
Assessing progress and understanding
Pupils with secure understanding indicated by: defining the term hardness;
This content is for subscribers only. Join for access today.
Knowledge outcomes
- I can define the term hardness as a measure of how easily scratched or dented a material is.
This content is for subscribers only. Join for access today.
Vocabulary definitions
-
hard
A material that is not easily scratched or dented.
-
hardness
A measure of how easily dented or scratched a material is.
This content is for subscribers only. Join for access today.
In this unit
Maintained by: Kapow Primary team
Last update: 7th October, 2024
