Chris Anthony

Science Education

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Photosynthesis	Microbial Physiology (SVU)	Methylotrophy (UEA)
Science Key Stage 3 SORRY NO LONGER AVAILABLE FROM BBC
My Microscope pages have many useful sections for students of all ages
Other useful sites for younger scientists
Science Key Stage 3 (KS3) in the UK system. Years 7 - 9, age 11-14 SORRY NO LONGER AVAILABLE FROM BBC This material is taken from a site run by the BBC called BBC Bitesize. This is sometimes difficult to use when you want to go to a particular subject for revision. I have arranged their Tables below in a fashion that makes this easier. All the links eventually go to the appropriate place in BBC Bitesize. If you Click on the bit in the Table below that says more detail this goes to my Tables which give links to excellent revision of all the subjects. THEN if you Click on one of the four blue headings in the table below you will go direct to the BBC page where there is revision of the subject and also tests, and YouTube clips of activities Organisms, behaviour and health Click here for more detail Life processes, cells, health, variation and classification, feeding relationships Chemical and material behaviour Click here for more detail Solids, liquids and gases, periodic table, pH scale for acids, bases and alkalis Energy, electricity and forces Clic k here for more detail Energy, forces, electric currents and magnetism The environment, the Earth and the universe Click here for more detail Rock types, astronomy, and the environment
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Chemical and material behaviour TOP of Key stage 3 TOP of page
Physical and chemical properties are discussed here. Find out about the atoms and particles that make up chemical matter, and the experiments that help you analyse elements.

This section includes The Particle Model, Atoms and Elements, Compounds and Mixtures, Acids Bases and Metals. Click on the blue headings to take you to the right bit of the BBC site.

Click here to download a summary of some of this material as a Word document (Chemistry for Matt)

The Particle Model
You can use the idea of particles to explain the properties of solids, liquids and gases.The strength of bonds between particles is different in all three states. It explains why solids cannot flow, and why gases can be compressed.

Solids Liquids Gases Flowing Arrangement and movement

Behaviour of matter
Solids, liquids and gasses have physical properties. The way they behave is affected by heating and cooling. We will also look at pressure and diffusion in gases.

Expansion and contraction    Pressure in gases     Diffusion

Atoms and elements
Everything is made from atoms, and there are over 100 different types. These are called elements, and they can be divided into the metals and the non-metals. We'll look at their physical and chemical properties in this Revision Bite

Atoms   Chemical symbols   The periodic table   Metals   Non-metals    Metals v non-metals

Compounds and mixtures
Compounds are chemicals made from atoms of different elements joined by chemical bonds. They can only be separated by a chemical reaction.
A mixture is made from molecules of elements and compounds that are simply mixed together, without chemical bonds. Mixtures can be separated using techniques such as filtration, chromatography, evaporation and distillation.

Compounds     Atoms and molecules     Chemical formulae     The reactivity series of metals
Metal and non-metal oxides     Mixtures     Separating mixtures

Acids, bases and metals
Acids, bases, alkalis and metals are found in the laboratory and at home. They can be irritant or corrosive and must be handled carefully.
How acid or alkaline a chemical is can be measured on the pH scale, using indicators like litmus and universal indicator. Acids and bases react together to form salts and other products too.

Acids in the laboratory Bases and alkalis Indicators and the pH scale
Reactions of acids with bases Naming salts Reactions of acids with metals

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Energy, electricity and forces TOP of Key stage 3

Energy comes from renewable and non-renewable sources. Electrical energy is a measurable force that also creates magnetic fields.
This section includes Energy transfer and storage, Forces, Electric Current and Voltage, Magnets and electric current

Energy transfer and storage
Energy can be stored or transferred from place to place in different ways. Let's look at some examples

Energy basics Energy transfer diagrams Heat and temperature Transfer of thermal energy
Non-renewable resources Renewable resources Saving energy

Forces
Forces can change the shape of objects and change the way they are moving. Weight, pressure and turning moments are all the result of forces too.

What are forces? Weight, mass and gravity Pressure Balanced forces Unbalanced forces
Frictional forces Moments

Electric current and voltage
Electric circuits can be series or parallel. You need to know the symbols we use to draw circuit diagrams. An ammeter measures electric current, in amps, by measuring how much charge is flowing in the circuit. A voltmeter measures, in volts, the difference in electrical energy between two points of a circuit.

Electric charge Circuit symbols Series circuits and parallel circuits Measuring current and voltage Current in series circuits

Magnets and electric current
Electric current can cause a magnetic field, which is how electromagnets work. Electric current can also heat things, and cause chemical reactions, like in electrolysis.

Bar magnets Magnetic fields Electromagnets Using electromagnets Heating effect Electrolysis

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Organisms, behaviour and health TOP
Life processes, cells, health, variation and classification, feeding relationships
Humans, animals and plants have similar life processes. But, the cell functions, reproductive patterns, food chains and behaviour are very different for each species.

Life Processes
There are seven processes that are common to living things. These seven processes are movement, respiration, sensitivity, growth, reproduction, excretion and nutrition.

MRS GREN    Respiration     The respiratory system and ventilation     Gas exchange
Movement     Joints     Antagonistic muscles

Cells to Systems
      Animals and plants are made of cells. Cells form the basic "building blocks" for living things. Some cells have specialised functions.
       Tissues are made from cells of a similar type. Organs are made from tissues, and systems are made from several organs working together.

Cells   Animal cells and plant cells   Cells and their functions    Cells, tissues and organ systems

Reproduction
This Revision Bite is about the human reproductive system. It describes the changes that take place during adolescence as the reproductive system develops. It also describes pregnancy and the way that the foetus develops in the womb.

The male reproductive system     The female reproductive system     The menstrual cycle
Fertilisation and foetal development    Puberty
Diet, Drugs and Health
A balanced diet contains the different nutrients in the correct amounts to keep us healthy. Certain foods are not necessarily 'bad' for us, but eating too much of them could be. We will look at what food types are needed, how they are digested.
     Drugs are substances that affect our bodies. They can be medicines or recreational drugs, legal or illegal. We will look at these in detail.

Nutrients     Some effects of a poor diet     Digestive system  Digestion and enzymes
Absorption and egestion    Smoking and health   Drugs and health

Disease
This Revision Bite is about disease - the microbes that cause it and what our bodies do to fight and prevent it.

Microbes    Microbes - useful or not?   Spreading microbes    Defence against microbes
Antibiotics and immunisation

Variation and Classification
The millions of types of living things can be organised into categories, where we group together organisms with similar features. This is called the classification system.
     Variation between individuals in a species can be continuous or discontinuous, inherited or environmental.

Species   Continuous and discontinuous   Inherited and environmental causes of variation
Variety within a species   Genetic engineering   Why do we classify organisms?   The five kingdoms

Food Chains
In this Revision Bite we'll look at the feeding relationships between living things. These can be shown in food chains and food webs.
     All food chains start with green plants. Green plants use sunlight to produce the source of their energy. This energy is then passed along the food chain as one organism eats another.

Plants and photosynthesis    Getting carbon dioxide, light and water
Respiration in plants    Food chains   Pyramids of numbers   Food webs
Changes to food webs  Toxic materials in the food chain

Behaviour
There are several types of behaviour in humans and other animals that can be described and investigated by scientific research.

Instinct   Imprinting   Conditioning   Imitation   Human behaviour   Investigating behaviour

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The Environment, the Earth and the Universe TOP
Learn about the rock forms and habitats on Earth. And find out more about our planet and where it fits into the solar system.

The Rock cycle
This Revision Bite looks at the three types of rock: sedimentary, igneous and metamorphic. It looks at how they are formed, the weathering of rocks and the way one form of rock turns into another, in the rock cycle.

What are rocks?   Sedimentary rocks   Igneous rocks   Metamorphic rocks
Weathering   Erosion and transport   The rock cycle

Astronomy and Space Science
The solar system contains planets, their satellites, asteroids and comets. The planets orbit the Sun and take different amounts of time to do this.
     We have night and day on Earth because the Earth spins on its axis. The tilt of the Earth's axis causes the seasons to change as we orbit the Sun in one Earth year.

The solar system   Gravitational forces    Days and nights  Years and seasons
The Moon   Artificial satellites and space probes

Changes in the Environment
This Revision Bite is about the relationships between organisms and the environments they live in.

A changing environment   Extinction   Humans and the environment   Pollution   Climate change

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Other useful sites

Photosynthesis. Elementary discussion of Photosynthesis (recommended by Erin)

OCR B Salters Chemistry Useful links are listed below:

Thestudentroom: A general resource website for this course, with many links to revision etc and lots of chats.

4College site: Site devoted to this chemistry course. t looks empty so click on Site map to find all the links.

KnockHardy publishing: Valuable revision notes with examples.

Docbrown site: This part is devoted to A2 and AS levels. Looks good although there are irritating adverts etc.

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Chris Anthony