Revision for Mid Year Exams 2014
Biology
Food and Digestion
· Understand what is meant by a balanced diet
· Know the 5 Nutrient groups and their importance in out diet
1. Carbohydrates – provide energy
2. Proteins – Repair damaged cells in our body
3. Fats – Good source of energy, to much results in high levels of cholesterol in our bodies.
4. Vitamins - helps fight disease
5. Minerals – helps to keep the body healthy
· Find out what happens when people do not have a balanced diet
· Food id broken down and absorbed into our bodies by the digestive system.
· Identify the parts of the digestive system and their function (Mainly covered in Year 7)
Photosynthesis
· Roots take in Water
· Leaves absorb sunlight and CO2.
· Sunlight is used as energy in the process of Photosynthesis
· The leave excrete oxygen
· Starch and Carbon is produced for the plant to grow
Chemistry
Atoms, Elements, molecules and compounds
· Explain what scientists mean when they talk about elements and atoms
· Identify the 1st 20 and common elements
· Use symbols to name elements
· Draw diagrams to show the structure of atoms
o Nucleus – Protons, neutrons, electrons etc
· Recognise how elements are organized on the periodic table.
· Understand how atoms combine to make molecules
· Elements – Contain atoms or molecules of a single element. Eg. Na and O2
· Compounds – Contain chemically bonded atoms of two or more elements. E.g. NaCL
Physics
Light
· Light travels at high sepped in straight lines, called rays, from a luminous source. A beam is a number of light rays.
· We see objects because light is reflected off them enters our eyes.
· Materials can be classified as transparent, translucent, or opaque depending on how light behaves when it meets them.
· Light is blocked by Opaque materials and a shadow is formed behind them.
· Light is reflected from smooth, shiny surfaces. Light is scattered by rough surfaces.
· The angle at which light meets a shiny object(the angle of incidence) is the same as the angle at which it is reflected (the angle of refelction), measure from the normal.
· When light is reflected from a shiny surface an image is formed.
· When light passes from one material (such as air) to another (such as water) it is bent or refracted because it changes speed.
· White light can be dispersed to give a range of different colours called a spectrum. ROYGBIV
· We can see different coloured objects because they absorb certain of light and reflects others.
Coloured filters can be used to change the colour of white light.
Food and Digestion
· Understand what is meant by a balanced diet
· Know the 5 Nutrient groups and their importance in out diet
1. Carbohydrates – provide energy
2. Proteins – Repair damaged cells in our body
3. Fats – Good source of energy, to much results in high levels of cholesterol in our bodies.
4. Vitamins - helps fight disease
5. Minerals – helps to keep the body healthy
· Find out what happens when people do not have a balanced diet
· Food id broken down and absorbed into our bodies by the digestive system.
· Identify the parts of the digestive system and their function (Mainly covered in Year 7)
Photosynthesis
· Roots take in Water
· Leaves absorb sunlight and CO2.
· Sunlight is used as energy in the process of Photosynthesis
· The leave excrete oxygen
· Starch and Carbon is produced for the plant to grow
Chemistry
Atoms, Elements, molecules and compounds
· Explain what scientists mean when they talk about elements and atoms
· Identify the 1st 20 and common elements
· Use symbols to name elements
· Draw diagrams to show the structure of atoms
o Nucleus – Protons, neutrons, electrons etc
· Recognise how elements are organized on the periodic table.
· Understand how atoms combine to make molecules
· Elements – Contain atoms or molecules of a single element. Eg. Na and O2
· Compounds – Contain chemically bonded atoms of two or more elements. E.g. NaCL
Physics
Light
· Light travels at high sepped in straight lines, called rays, from a luminous source. A beam is a number of light rays.
· We see objects because light is reflected off them enters our eyes.
· Materials can be classified as transparent, translucent, or opaque depending on how light behaves when it meets them.
· Light is blocked by Opaque materials and a shadow is formed behind them.
· Light is reflected from smooth, shiny surfaces. Light is scattered by rough surfaces.
· The angle at which light meets a shiny object(the angle of incidence) is the same as the angle at which it is reflected (the angle of refelction), measure from the normal.
· When light is reflected from a shiny surface an image is formed.
· When light passes from one material (such as air) to another (such as water) it is bent or refracted because it changes speed.
· White light can be dispersed to give a range of different colours called a spectrum. ROYGBIV
· We can see different coloured objects because they absorb certain of light and reflects others.
Coloured filters can be used to change the colour of white light.