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Science (biology, physics and Chemistry together.) - Coggle Diagram
Science (biology, physics and Chemistry together.)
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The fire triangle.
You need oxygen, heat and fuel to make a fire.
Water is much colder than fire, so when you try and put out a fire with water, it is taking away heat from the fire triangle so the fire can't burn anymore.
Carbon dioxide is heavier than oxygen, so when you use a carbon dioxide fire exstinguisher, it moves the oxygen out of the way which delets oxygen from the fire triangle so the fire can't burn anymore.
If maybe there was a forest fire, and you cut down the surrounding trees in the area, you would be taking away fuel from the fire triangle, so the fire can't burn anymore.
graphs
A line graph is also a type of graph to record data/ findings of an experiment using crosses that stay on the right amount and then a line goes through them to properly illustate the point.
A bar graph is a type of graph to record data/ findings of an experiment using bars that go tall enough to the right amount.
If something has a density less than water, then it will float on the surface of the water. If the density is higher is that of water, then it will sink.
A fair test is creating an experiment that will have control variables and other factors to keep it fair.
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Magnesium is a highly reactive metal, so that is why it reacts with hydrochloric acid.
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