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4th Grade NG Earth Science Ch. 2 Flashcards | StudBud
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4th Grade NG Earth Science Ch. 2
4th Grade NG Earth Science Ch. 2
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#NG earth science ch. 2 review
Flashcards
16 cards
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Questions
16
Answers
1
What property are you testing when scratching the surface of a mineral?
hardness
cleavage
color
streak
2
Slate, a dark gray metamorphic rock formed ....
pieces of dead plants decayed to form slate
grains of sand collected and hardened over time
minerals melted deep underground and cooled to form slate
heat and pressure turned sedimentary rock into slate
3
Areej finds a rock with a fossil. What type of rock did she most likely have?
sedimentary
metamorphic
igneous
mineral
4
Which process forms an igneous rock?
Sediments are squeezed together.
Animal remains are pressed into layers.
Melted rock cools
Heat and/or pressure changes a rock into a new rock.
5
How can streak be tested?
rub it across a tile to see the color of the powder left
break it to see if the pieces are cubes or sheets
rub it against objects to see if it can be scratched
shine a bright light on it to see how it is reflected
6
How do hand lenses help a person observe the grains of a rock?
they reflect light
they shrink them
they bring it closer
they magnify them
7
Which would form an igneous rock?
heat and pressure
small rocks pressed together
plant and animals
lava cooling
8
What is a mineral?
magma that escapes from Earth's surface
small broken pieces of rock
a solid, nonliving natural material
the remains of an animal from the past
9
How are coal, sandstone, and granite similar?
they have fossils
they are minerals
they are the same color
they are rocks
10
Rocks are made mostly from...
fossils
minerals
dirt
lava
11
Raafe wants to examine the grains on his rock. What tool will he use?
scale
stethescope
hand lens
telescope
12
A rock placed under heat and pressure becomes what type of rock?
fossil
igneous
sedimentary
metamorphic
13
How does sedimentary rock form?
minerals melt deep underground and harden
pieces of rock are squeezed together
pressure rearranges the crystals
heat causes the properties to change
14
If Emily finds a fossil in a rock, what can it help her determine?
the age of the rock
the color of the rock
the grain size of the rock
the texture of the rock
15
Gi notices a mineral breaks into flat sections. What property is he observing?
cleavage
luster
hardness
streak
16
How can these two rocks be compared based on a property that can be seen?
the left rock has minerals and the right does not
the left rock is magnetic and the right is not
the left rock has air holes and the right does not
the left rock has cleavage and the right does not
