Tag Archives: homeschooling

Radioactive Decay

Radioactive isotopes of elements have unstable arrangement of neutrons and protons in their nuclei. To become more stable, they emit alpha or beta particles. But this changes the number of protons and neutrons in the nucleus resulting in the formation … Continue reading

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Gradient

Gradient: Gradient is the measure of a line’s steepness (slope). The gradient of a line describes the change in y values as the x value increases by 1. The size of the gradient tells us how steep a line is. … Continue reading

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Linear Equations

There is a Linear relationship between two variables if a uniform change in the independent variable produces a uniform change in the dependent variable. A linear relationship produces a linear graph (straight line). A linear graph is represented by the … Continue reading

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Burning

1. Is burning a chemical reaction? 2. What happens when substances burn? 3. What are oxidation reactions? 4. Is rusting an oxidation reaction? Why? 5. Rusting is a very slow type of burning reaction. True or false. 6. What are … Continue reading

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Acids and Bases

1. Write 2 properties of acids. Name three things you can find at home that contains an acid. 2. Write 3 properties of bases. 3. Why is caustic soda the main ingredient in drain cleaners? 4. Name three corrosive acids … Continue reading

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