This Chemical Sciences unit addresses how changes in state from solid to liquid and liquid to solid can be caused by adding or removing heat.
It consists of 6 lessons of approximately 60 minutes duration.
The sequence of lessons and suggested time frames should be regarded as a guide only; teachers should pace lessons in accordance with the individual learning needs of their class.
An assessment task for monitoring student understanding of the unit objectives is included and will require an additional lesson.
Teachers are encouraged to collect samples of students’ work throughout the unit to add to a learning portfolio. These can also be used to assess students’ understanding of the unit objectives.
This unit plan includes the following resources:
- Wonder Wall Brainstorming Display Template
- Solids, Liquids and Gases – Sorting Activity
- Properties of Solids, Liquids and Gases – Worksheet
- Solids, Liquids and Gases PowerPoint
- Melting and Freezing – Worksheet
- Let’s Experiment! – How Long Will It Take to Melt?
- Science Experiment – How Long Will It Take to Melt?
- Removing Heat – Worksheet
- Recycling Soft Plastics – Worksheet
- Changing States – Worksheet
- To establish that matter can be classified as solid, liquid or gas.
- To explore the properties of solids, liquids and gases.
- To observe how a change of state between solid and liquid can be caused by adding or removing heat.
- To investigate what happens when heat is applied to a range of solids.
- To investigate what happens when heat is removed from a range of liquids.
- To explore how changes from solid to liquid and liquid to solid can help in the process of recycling plastic.
Preparing for Learning
This Science unit provides excellent opportunities for cross-curricular integration. Look for ways to meaningfully integrate the content of the unit with other learning areas e.g. Literacy and Numeracy.
Prior to commencing the unit, develop a classroom display which focuses on states of matter. Display posters, word wall vocabulary and learning goals that the students will engage with throughout the unit to stimulate their learning. For examples of additional teaching resources to display in your classroom, browse the States of Matter collection on the Teach Starter website.
The lessons and science experiments within this unit are structured in accordance with the scientific method. Ensure that the students are familiar with this process before commencing the unit. A comprehensive lesson plan addressing the concepts of fair testing in Science can be downloaded here.
Some of the resources that accompany this unit plan will need to be prepared prior to teaching. For this reason, it is advised that teachers browse through all lessons before commencing the unit.
National Curriculum Curriculum alignment
- Key Stage 2 (KS2) - Lower
Key Stage 2 (KS2) - Lower covers students in Year 3 and Year 4.
The principal focus of science teaching in lower key stage 2 is to enable pupils to broaden their scientific view of the world around them. They should do this through exploring, talking about, testing and developing ideas about everyday phenomena an...
- States of matter
- Working scientifically