In this lesson, we will learn about particles! We are going to learn how the particles in each state of matter behave and how this leads to the properties of solids, liquids and gases. For this lesson,
Unit Overview: Particles in physical and chemical changes
- Know that some materials will dissolve in liquid to form a solution, and describe how to recover a substance from a solution
- Use knowledge of solids, liquids and gases to decide how mixtures might be separated, including through filtering, sieving and evaporating
- Give reasons, based on evidence from comparative and fair tests, for the particular uses of everyday materials, including metals, wood and plastic
- Demonstrate that dissolving, mixing and changes of state are reversible changes
- Explain that some changes result in the formation of new materials, and that this kind of change is not usually reversible, including changes associated with burning and the action of acid on bicarbonate of soda
In this lesson, we are going to look at the differences in the particles of pure and impure substances. We will use water and gold as examples. You will need a pencil, a piece of paper and a ruler.
In this lesson, we will learn what happens to particles during dissolving. We will investigate what happens when we mix water with salt, sugar and sand. For this lesson you will need a pencil and a piece of paper. If you would like to take part in the practical you will also need a glass of water and some sugar and salt. If you do not have these things then you can still take part in the lesson by watching the teacher's demonstration.
In this lesson, we will look at three different methods for separating mixtures: sieving, filtration and evaporation. We will learn when to use each one and plan our own experiment. You will need a pencil and a piece of paper for this lesson.
In this lesson, we will learn about the difference between physical changes and chemical reactions. We will learn about the particles in both of these types of change and the signs to look out for in a chemical reaction. You will need a pencil, a ruler and a piece of paper for this lesson. If you have baking soda and vinegar then you will need that for an investigation too, but don't worry you can still take part without these things.
In this lesson, we will learn about combustion reactions. We will learn what a fuel is and what happens when a fuel combusts. We will practise writing combustion equations and interpret the results from an experiment on combustion.
Units in Science
- Practical skills
- Raw and synthetic materials
- Light & dark
- States of matter
- Rock cycle
- Human anatomy
- Electrical circuits
- Separating mixtures
- Physical and chemical changes
- Reproductive cycles
- Notable scientists
- Particles in physical and chemical changes
- Humans and animals over time
- Diet and lifestyle
- History of science