Brainpop Minerals Answers

Name ____________________________ Teacher __________ Period _____ Date ___________
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Go to http://www.brainpop.com/
Click on “login.”
The log-in name and password are both: hillcountryms
Click on Science.
Click on Earth Systems.
Scroll down and click on “Mineral Identification.”
Put on your headphones and watch the movie.
Answer the following questions when you are finished.
Quiz
C 1.Which of the following is a chemical property of a mineral?
a. hardness
b. luster
c. atomic structure
d. color
B 2. What can you infer about graphite from the fact that you can scratch it with just your
fingernail?
a. It’s not very lustrous
b. It’s not very hard
c. Its streak is black-colored
d. It has fracture
D 3. Which of the following minerals has a metallic luster? (see choices on screen)
B
4. What word describes the material involved in a streak test?
a. fractured
b. powdered
c. scratched
d. liquid
A 5. What tool would you need to discover whether a mineral has fracture?
a. a hammer
b. a file
c. a grinder
d. a harder mineral
D 6. Which mineral is ranked highest on the Mohs scale?
a. talc
b. calcite
c. quartz
d. diamond
C 7. Which physical property may require no tools, scales or other equipment to determine?
a. hardness
b. fracture
c. color
d. cleavage
B 8. Why do you need to run several tests before you can identify a mineral with 100
certainty?
a. Minerals all have the same chemical structure.
b. Many minerals share physical properties in common.
c. Minerals’ physical properties can change very quickly.
d. A mineral can only be subjected to a few tests before it degrades.
D 9. What property of a mineral indicates that it has cleavage?
a. A milky-white color
b. The ability to be scratched by a steel file
c. It sizzles in the presence of hydrochloric acid.
d. Smooth faces
C 10. What term best describes the way minerals are identified?
a. Guesswork
b. Gimmick
c. Procedure
d. Trick
Name ____________________________ Teacher __________ Period _____ Date ___________
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Gypsum
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Apatite
Fluorite
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Topaz
Feldspar
Diamond
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Name ____________________________ Teacher __________ Period _____ Date ___________
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Click on Earth Systems.
Scroll down and click on “Crystals.”
Put on your headphones and watch the movie.
Answer the following questions when you are finished.
Quiz
A 1.Which of the following is true of all crystals?
a. They all have at least some properties of solids.
c. They are all found in caves.
b. They can all be made into jewelry
d. They are all made from carbon.
D 2. Which of the following household products is a crystal? (see pictures on screen)
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b.
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d.
B 3. What is a crystal lattice?
a type of rock formation in which crystals can be found
an ordered, repeating pattern of molecules
a collection of different types of crystals
a grouping of molecules with a shifting structure
B 4. If you wanted to find liquid crystals, where would you look?
a. in caves
b. in electronic devices
c. in a medicine cabinet
d. in a kitchen
C 5. What can you conclude about a quartz crystal that is purple in color?
a. It contains a lot of limestone.
b. It contains a lot of carbon.
c. It contains a lot of iron.
d. It contains a lot of lead.
D 6. How do crystals grow? Choose the best answer.
a. New bonds form between the crystal’s atoms.
b. Water in the environment “inflates” the crystal.
c. The cells of the crystal divide.
d. New atoms join the crystal lattice.
A 7. Which term describes the physical structure of all crystals?
a. geometric
b. random
c. liquid
B
d. carbon-based
8. What is the process by which crystals tend to break along obvious structural lines?
a. fracture
b. cleavage
c. faulting
d. derision
A 9. How do the crystals that grow freely in caves differ from crystals of salt?
a. Crystals in caves tend to be bigger, and more precise in shape.
b. Crystals in caves are not arranged in orderly crystal lattices.
c. Crystals in caves tend to be smaller, and less precise in shape.
d. Crystals in caves are often liquid crystals.
D 10. How are crystals grouped?
a. according to their sizes
c. according to their colors
b. according to the elements that make them up
d. according to the shapes of their crystal lattices
Name ____________________________ Teacher __________ Period _____ Date ___________
Look at the diagrams of crystal shapes found in minerals. Match the correct name of the crystal
with the diagram. If you need to go back and re-watch the video, please do so. You may also
pause the video to get a better observation of the diagrams.
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1. Hexagonal
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2. Isometric
C 3. Monoclinic
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A 4. Orthorhombic
D 5. Tetragonal
B
6. Triclinic
G 7. Trigonal
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