Outstanding Science | Primary Science Resources for the National Curriculum

Primary Science Resources for the National Curriculum

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KS2 - Year 4 - States of matter

Researching melting pointsFree! 

Outstanding Science Year 4 - States of matter | OS4C003

Children learn that many materials other than water will melt if heated to a high enough temperature. They carry out a networking activity, where each child has an incomplete set of information, to find out the melting points of 6 different metals, They record their information in a table and transfer it to a bar chart.

  • 4c2: observe that some materials change state when they are heated or cooled, and measure or research the temperature at which this happens in degrees Celsius (C)
I can research the melting and boiling points of different materials.
Outstanding Science Year 4 - States of matter | Researching melting points

Solids, liquids and gases 

Outstanding Science Year 4 - States of matter | OS4C001

Children learn about the differences between solid, liquids and gases and how they can be identified. They cut out 14 different images of familiar substances and group them as solid, liquids or gases. They discuss which materials were most difficult to group and how temperature can affect whether it is a solid, liquid or a gas.

  • 4c1: compare and group materials together, according to whether they are solids, liquids or gases
I can group substances according to whether they are solid, liquids or gases.
Outstanding Science Year 4 - States of matter | Solids, liquids and gases

Changing state 

Outstanding Science Year 4 - States of matter | OS4C002

Using the particle model, children learn about the different states of matter (solids, liquids, and gases). They learn how the amount of energy that the particles have affects the state of the material. Children use scientific vocabulary (melt, freeze, evaporate, condense) to create a diagram explaining how matter changes state.

  • 4c1: compare and group materials together, according to whether they are solids, liquids or gases
I can explain how materials change state.
Outstanding Science Year 4 - States of matter | Changing state

Investigating melting points 

Outstanding Science Year 4 - States of matter | OS4C004

Children investigate the melting point of 3 familiar materials - ice, chocolate and butter. They use a thermometer to measure temperature and record their results in a table. They discuss how accurate their predictions were and whether melting is a reversible change.

  • 4c2: observe that some materials change state when they are heated or cooled, and measure or research the temperature at which this happens in degrees Celsius (C)
I can investigate the melting point of different materials.
Outstanding Science Year 4 - States of matter | Investigating melting points

Thermal insulators 

Outstanding Science Year 4 - States of matter | OS4C005

Children investigate how effective 4 different materials are at insulating a cold drink and slowing its increase in termperature. They use thermometers to measure the temperature of each cup every 15 minutes over the course of 2 hours. Children record their information in a table and then create a line graph showing the temperature of all 4 cups over a 2-hour period.

  • 4c2: observe that some materials change state when they are heated or cooled, and measure or research the temperature at which this happens in degrees Celsius (C)
I can investigate how effective different materials are as thermal insulators.
Outstanding Science Year 4 - States of matter | Thermal insulators

The water cycle 

Outstanding Science Year 4 - States of matter | OS4C006

Children learn about the water cycle and that water is not created or lost, but simply moved around the Earth. They learn that heat from the Sun drives the water cycle. Children create their own water cycle diagram, explaining the processes of evaporation, condensation and precipitation by cutting and pasting or using their own words.

  • 4c3: identify the part played by evaporation and condensation in the water cycle and associate the rate of evaporation with temperature.
I can explain the water cycle.
Outstanding Science Year 4 - States of matter | The water cycle

Making a solar still 

Outstanding Science Year 4 - States of matter | OS4C007

Children learn how to make their own solar still to recover water. They learn that solar heating of water-laden soil causes some water to evaporate, which can then be captured by a plastic sheet where it evaporates and is recovered by a bowl or mug. They explain how the solar still works.

  • 4c3: identify the part played by evaporation and condensation in the water cycle and associate the rate of evaporation with temperature.
I can make a solar still and explain how it works.
Outstanding Science Year 4 - States of matter | Making a solar still

Investigating evaporation rates 

Outstanding Science Year 4 - States of matter | OS4C008

Children investigate how rapidly 100ml of water placed in locations with different temperatures will evaporate. Using a table, they record the capacity of 4 different measuring containers over the course of 14 days. They complete a line graph showing the capacity of all 4 containers over that period. They learn how a line graph can help us infer missing results (such as weekend measurements).

  • 4c3: identify the part played by evaporation and condensation in the water cycle and associate the rate of evaporation with temperature.
I can investigate how temperature affects evaporation rates.
Outstanding Science Year 4 - States of matter | Investigating evaporation rates