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4th & 5th Grade Language Arts: Diagnostic Test #3
Quiz by Sonya Paul
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- Q1
Diamonds
Directions: Read the following passage and answer the questions that follow. Refer to the text to check your answers when appropriate.
1. Diamond is the hardest material on Earth. Yet, gem cutters shape them. If diamonds are so hard, how do they cut them into shape? They use other diamonds of course! 2. Not all diamonds are the same. Some are harder than others. The hardness of a diamond depends on two things: its purity and its structure. Let's discuss purity first. 3. Diamonds come in many colors: grey, white, yellow, blue, pink, purple, orange and black. Red diamonds are the rarest of all. This makes them worth a lot of money. Yet, pure diamonds are colorless. They are all carbon. They are transparent like glass. 4. Colors found in diamonds come from impurities. They have another element besides carbon. They have a carbon defect. For example, yellow diamonds have nitrogen in them. The nitrogen is yellow. Blue diamonds have boron trapped in their crystal structure. The boron is blue. 5. The purity or color of a diamond is important to its hardness. Pure diamonds are harder than impure diamonds. But purity isn't the only thing that matters. Structure also affects hardness. 6. The carbon atoms in a diamond are arranged in a crystal structure. Some crystal structures are perfect. A diamond with a perfect crystal structure is harder than one with flaws. So pure, colorless crystal diamonds are the hardest of all. 7. Good gemstones should be hard. This is what makes diamonds so great for jewelry. Some gems, such as azurite, are soft and easy to scratch. Azurite looks pretty, but it will scratch if worn daily. Diamonds do not scratch easily. Only a diamond can scratch another diamond. 8. That's why you can wear a diamond ring while doing chores, if you want. The gem will not need polishing. Just don't go fist bumping other people with fancy engagement rings. It will end badly.
According to the text, how do gem makers shape diamonds?
They use metal saws.They use other diamonds.They use sand paper.They use large knives.30s - Q2What are the two factors that determine a diamond's hardness according to the text?Purity and colorPurity and structureStructure and shapeColor and carbon30s
- Q3Which type of diamond DOES NOT have a carbon defect?Clear diamondYellow diamondRed diamondBlue diamond30s
- Q4The author of the article would most likely AGREE with which statement?Diamond is much harder than azuriteDiamond is much prettier than azurite.Azurite is much harder than diamond.Azurite is much prettier than diamond30s
- Q5What causes a diamond to turn yellow?AzuriteNitrogenCarbonBoron30s
- Q6A pure diamond is made entirely from which?CarbonAzuriteNitrogenBoron30s
- Q7Why are red diamonds worth so much money?They have the highest purity of all diamonds.They are soft and easy to shape.They are the rarest of all diamonds.They are the hardest diamond of all.30s
- Q8The author of the article would most likely DISAGREE with which statement?Purity affects the hardness of a diamond.Blue diamonds are the most pure.Pure diamonds are made entirely from carbon.Trapped boron causes diamonds to turn bluish.30s
- Q9Which is a FACT?Diamonds have their atoms arranged in a crystal structureDiamonds are beautiful.Red diamonds look even better than clear diamonds.Azurite jewelry is prettier than diamond jewelry.30s
- Q10What lesson can readers learn from this text?He is persuading readers to purchase diamonds.He is describing how diamonds are mined.He is explaining properties of diamonds.He is arguing that diamonds cost too much money.30s
- Q11Choose the correctly spelled word.melodymelodeemelodeymelodie30s
- Q12Choose the correctly spelled word.travledtraveliedtravelidtraveled30s
- Q13Choose the correctly spelled word.handledhandeledhandelledhandleed30s
- Q14Choose the correctly spelled word.slippedslipiedslippiedsliped30s
- Q15Choose the correctly spelled word.riseingrisengrisingrissing30s