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Conor Yeomans

on 11 November 2014

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Transcript of science

Solids and Liquids
- To understand the different properties of solids and liquids

- To be able to group and classify objects

What is a solid?
- A solid is an object that stays in one place and can be held.

- A solid will keep its shape and not flow like liquids.

- Solids will take up the same amount of space and won't spead out (like a gas or liquid)

- Solids can be cut or shaped

What is a Liquid?
- A liquid can flow or be poured easily and is not easy to hold.

- A liquid will change shape according to the container it is put in.

- If a liquid changes its shape, it will still take up the same amount of space. Its volume will not change
Solids and Liquids
Learning Outcomes
Common Misconceptions
Solid and Liquid NC links
Activities to support children's learning with solids and liquids
Now it's your turn!!
Health and Safety
What do you think ????
Explain to adults
Explanation for children
Lets get Scientific!

So everything is made up of tiny particles called molecules.

As we all know different things can be labeled as a solid, a liquid, or a gas depending on their state of being.

However goop shows properties of being both a solid and a liquid.

We know that solids hold their shape and liquids do not. So, when pressure is applied consistently to the 'Goop’, it is a solid. The reason? When goop is a solid all of the molecules are packed tightly together, therefore it keeps its shape. When you apply less pressure the molecules are free to move around and the Goop becomes a liquid, and therefore does not hold its shape.

Old NC
New NC
KS2 Sc3 1e.

To recognise differences between solids, liquids and gases, in terms of ease of flow and maintenance of shape and volume
Practical activities within the classroom are very important to help convey information and demonstrate the theory put into practice.
It allows for kinesthetic learners to take a hands on approach to their learning and to be engaged in the task.
Some Activities that support learning include..
Fair Testing
This is the process of creating an investigation that will test the theory being taught.
Children could create a table to investigate what happens when they add water to a range of solids.
Solid Salt Sugar Marbles
what you think
will happen
This allows children to hypothesize and use independent enquiry to conclude what they THINK will happen, and what WILL happen. They can then compare and evaluate their testing and their methods.
Rice Crispy Cakes
This is a tasty way to explain the process of solids and liquids and its changing state.
Teachers can explain the process of chocolate changing from a solid and through heat, becoming a liquid.
Using this activity children are able to observe the process of changing state. It is simple enough to be constructed in the classroom, and with enough supervision children can carry out with experiments themselves.
Sorting Games
Sorting activities can support children with their understanding of classification and secure their knowledge regarding the characteristics of a solid, liquid and gas.
This activity can be used for lower ability children who may need extra support with their learning of solids liquids and gases.
How to differentiate - Provide Children with a word bank with key vocab to promote their answers.
This activity would be used to support theory, and children would only be able to carry out this activity when they are solid in their knowledge of solids, liquids and gases.
Role Play
When teaching about the particples of a gas, liquid and solid the teacher could use the technique of role play to secure understanding.
The teacher could take the children into the hall or a wide open space where children can move about freely.
The teacher could then demonstrate, using the children, what the particles of a solid look like, (all the children packed closely together).
This allows for visual learners to understand what the particles of a solid, liquid or gas looks like. It also allows for learning outside the classroom enviornment
For children goop is magical

Goop can be used with all aged groups.

Lower KS1
For children this age, goop is more
about experiencing something new.

Children may use:

Investigative skills
Using their senses (not taste)
Exploratory skills
Enquiry skills

Questions can be asked
such as:
Is it a solid or a liquid?

Upper KS1
At this age children start to use their enquiry and investigative skills more during science.

Children could be given a hypothesis.
With resources children can explore the goop, coming up with answers, using their inquiry skills.
Lower KS2
Children will have established a good knowledge of science by this age. Children should be encouraged to use scientific vocabulary.

The teacher should introduce the question of whether or not goop is a solid or liquid.

Allowing children to explore the media and propose questions.

The use of scientific vocabulary is important.

Upper KS2
At this stage in science children have been exposed to many scientific investigations.

Although children may think goop is for smaller children, the same question we pose to you today can be asked to them.

Teacher can give time for children to explore and identify what it is made from and whether it is a solid or a liquid.

Lets test the theory
Year 4 states of matter

Compare and group materials together, according to whether they are solids, liquids or gases
Year 5 properties and changes of materials

use knowledge of solids, liquids and gases to decide how mixtures might be separated, including through filtering, sieving and evaporating
1. Sand and rice take the shape of containers, therefore they are not solids.
Fact: Each individual grain of sand and rice have definite shape, therefore they are solids.

2. Plasticine is not a solid as it has no definate shape.
Fact: A solid can change its shape if a force acts on in.
3. Solids are hard, strong and non-malleable.
Fact: Different solids have different degree of hardness, strength and malleability
Children may think:
Is it a liquid
or a solid?

Please do not eat any of the substances. If you do accidentally please report it. If anyone has any allergies to anything flour based let us know. Gloves are available if needed.
You will need:
3 cups, bowl, spoons, water, cornflour.

1. Add 2 cups of cornflour to the bowl.
2. Slowly add 2 cup of water and stir until a thick milkshake consistency.
3. Repeat until desired amount.
Heres some idea to help you answer the question.

Can you pour it?
Is it hard?
When you apply pressure what happens?
Roll it in a ball in your hands.
Think of the different properties for solids and liquids?
Properties of materials are taught throughout the curriculum, each year building and enhancing on children's knowledge
Properties of a solid
It will hold its shape unless broken
It does not flow
Its particles are in contact with one another
Its particles cannot move past each other
It can be hard.
It cannot be stirred.
It has a fixed shape.

Properties of a liquid
It will mould its shape to its container
It will spread out on a surface
It can flow
There is little space in-between each particle
It is runny.
It can be poured.
Full transcript