Velocity - A force causes an object to change it's ?, Newton - What is the unit of force?, Hookeslaw - The extension of a spiral spring is proportional to the weight added to it., Density - This is the mass per unit volume, Speed - The distance travelled in a time., Acceleration - an increase in speed in a certain time, Red - This blood cell carries oxygen, White - This blood cell fights infection, Enzyme - A biological catalyst, Alveolus - Gas exchange in the lungs happens here, Pulmonary - This artery carries blood from heart to the lungs, Aorta - This blood vessel carries blood from the heart to the body, Venacava - This blood vessel carries deoxygenated blood to the heart., Oxygenated - Blood containing lots of oxygen, Platelet - This blood cell causes clotting, Amylase - This enzyme digests starch, Maltose - The product of starch digestion by amylase, Capillaries - Tiny blood vessels where gas exchange takes place, Epiglottis - Stops food going down the wrong way, carbondioxide - This gas turns limewater milky, blue - What colour do bases turn litmus paper?, Alkali - A base that dissolves in water, five - Calculate the speed of a car in m/s that travels 450m in 90 s, Three - A car travelled at a speed of 50m/s and reduced it's speed to 8m/s in 14 sceleration.o,

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