1. Expla
2. State four hazards encountered at school.
3. Explain why toxic chemicals are classified as hazard.
4. Give two reasons why fuel tankers have warning and safety signs pasted at their back.
5. State five safety precautions against accidents on our roads.
6. (a) What is protective clothing?
(b) Give three examples of protective clothing and state what each does.
7. Explain why hazards are dangerous.

State the formula for density in words and mathematical symbols

Choose all that apply. when creating a graph, you should: determine the x- and y- variables label the scale on the x- and y- axes plot the data points draw a line of best fit to represent the data trend

Darla claims that the first periodic table developed by mendeleev was not completely accurate, so it is not useful at all. harmony argues that it establish the periodic table we use today, making it more credible. who is correct and why? darla is correct, because a model that has any mistakes should be thrown out. darla is correct, because a good model would not need to change. harmony is correct, because mendeleev’s model had all of the information correct in the first version. harmony is correct, because mendeleev’s model made predictions that came true.