A beaker is better for heating compared to a test tube because it does not break up easily.
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You say sorry to your parents then try to get better grade in Math test next time. Study harder.
a streak test is a test wheree you rub a mineral across a streak plate to see the color of its streak, which is a better indentifying factor of the mineral than the external color. A scratch test is when you scratch a mineral to find out its hardness on the Mohs Scale of Hardness. This is also another useful identifying factor
Well it is bad to cheat on any test. It is against the rules and morally wrong. It is also unfair to those who study and try hard to do their best without cheating. You are better off doing your best, even if you do poorly, and not cheating. You will sleep better and learn more too. Try it!
Do extra credit, or if possible, ask to rewrite a test or assignment to get a better grade for your report card.