SI Units
The International System of Units, the SI system, is a standard system of measurement used around the world.Length The SI unit of length is the metre, m. Centimetres, cm, and kilometres km ...
Notes by Amanda Sabu
Notes, resources, and study guides.
Temperature and Solubility
We know that all matter is made from atoms and molecules. when a solid (the solute) dissolves ina liquid (the solvent), the atoms and molecules of the solute are able to fit into the gaps ar...
Effects of Climate Change
1. Droughts and Heatwaves This can lead to: - Failure of crops to grow - food shortages - water shortages - Heatwaves can kill humans - New Deserts are formed2. More Violent Storms Warm...
Energy Conservation in the Home
New houses or houses that are being sold or leased must have a Building Energy Rating (BER) This tells us about the energy efficiency of the house. An 'A' rating means that the house is ver...
Energy
Energy is the ability to do work. Energy is measured in joules.Earths primary energy source - The Sun The sun is the primary source of energy for Earth. It provides us with light and heat ...
Food Safety and Hygiene
Food Hygiene Food hygiene involves being careful while - Preparing - Storing - Cooking - Serving food This protects your health and wellbeing.Food Spoilage Food will stay fresh ...
Cycles on Earth
Transpiration: The evaporation of water from the surface of a leaf Condensation: When a substance changes from gas to liquid. Precipitation: Rain, snow or sleet, etc formed when water in t...
The mouth
Food is broken down into smaller pieces. using the teeth. An adult has 32 teeth. There are four types of teeth: 1. Incisors - Incisors are the sharp teeth at the front of your mouth which ...
Distillation
Distillation is a method used to separate and collect the liquid part of a solution. Evaporation causes liquids to turn into gas and escape. Whit distillation, a piece of equipment called Li...
Mixtures
Soluble substances: are able to dissolve in a liquid An insoluble substance: does not dissolve in a liquid Solute: a substance that dissolves in a liquid Solvent: The liquid in which a su...