NEW
Font size
S
M
L
XL
WorksheetsAbsolute Dating, Law of Superposition
Total questions: 25
Worksheet time: 13mins
Name
Class
Date
1.
Layers of rock can tell us a lot about the history of an area. The most accurate way to date rock is using the law of superposition.
a)
True
b)
False
2.
Absolute Dating is a more accurate way to date fossils and rock layers because it uses radioactive elements to tell the exact age of dead organisms in those layers. What is the name of the popular radioactive element that scientists use to measure this.
a)
Uranium
b)
Potassium
c)
Carbon 13
d)
Carbon 14
3.
Use the diagram and relative dating to determine what is the oldest layer.
a)
The bottom layer will contain the oldest fossils
b)
The top layer will contain the oldest fossils
c)
It is impossible to tell which layer contains the oldest fossils with out absolute dating
d)
Layer A and C contain fossils from the same period
4.
Use the diagram and the law of superposition to make a statement about the image.
a)
The bottom two layers are generally the same age range
b)
The bottom layer is most likely the oldest and the top layer is most likely the youngest
c)
The top two layers cannot be determined because of weathering and erosion that may still be occuring
5.
The attached image shows the Grand Canyon. The Unkar Group shows an areas where there may have been some folding and faulting. Choose the best answer to explain what impact this may have on dating the fossils in this layer.
a)
This may cause items dated in this layer to be incorrectly dated if the scientist only uses relative dating.
b)
Scientists must take into consideration the folding and faulting that is happening in this image when dating the layers.
c)
The most accurate way to date this layer of rock would be to use absolute dating.
d)
The most accurate way to date the fossils would be to use the Law of Superposition
6.
Ms. Felder decides to climb a mountain for fun. When she gets to the very top she looks down and sees a group of shells and notices the fossil of what looks like a fish. How does she explain this?
a)
She takes the fossils to a fellow scientist for absolute dating
b)
She knows that some marine fossils are found on top of mountains because of plate that have converged
c)
She knows that some marine fossils are found on top of mountains because of plate boundaries that are divergent
d)
She uses relative dating to try to determine how old the fossils are.
7.
Sometimes sea shells can be found in strange places. Like deserts and on mountains. Other than plate boundaries moving what is another reason for this?
a)
The earth's tilt on its axis has changed over the years and the equator use to be farther south
b)
Sea levels use to be much lower
c)
Plate boundary movement is the only correct explanation for marine fossils in strange places
d)
The sea levels use to be much higher and covered most of the land on earth. So marine fossils are found in places far from water
8.
Which rock cycle process follows weathering and erosion?
a)
Sedimentary Rock Formation
b)
Compaction and Cementation
c)
Deposition
d)
Heat and Pressure
9.
Which type of rock leads to melting, weathering and erosion, and heat and pressure.
a)
Sedimentary
b)
Igneous
c)
Metamorphic
d)
Biological
10.
Which type of rock is always formed after the process of compaction and cementation?
a)
Metamorphic
b)
Sedimentary
c)
Igneous
d)
Obsidian
11.
This type of rock always comes after heat and pressure.
a)
Metamorphic
b)
Igneous
c)
Sedimentary
12.
___________ is the process of wind, water or other factors breaking rock down. This is most likely to happen on the surface of the rock where the rock comes into contact with air and water.
a)
Erosion
b)
Weathering
c)
Deposition
d)
Rock Cycle
13.
________________ is the process of weathered rock pieces moving and coming together to make new rocks. Big rocks are usually made of smaller rocks.
a)
Weathering
b)
Erosion
c)
Deposition
d)
Sedimentation
14.
This rock is created when molten magma or lava reaches the surface of earth and cools to form new rock.
a)
Metamorphic
b)
Sedimentary
c)
Igneous
d)
Obsidian
15.
Wetland areas are natural filters for sediments, the terrain breaks up rock through weathering and cleans water and materials that pass through those areas.
a)
Without wetlands pollution would increase
b)
Without wetlands pollution would decrease
c)
Wetlands are important places for native species of animals and plants
d)
Wetlands are important because of unique animals that live their but they do not have a large enough impact on pollution to be noticable.
16.
Deforestation on a large scale is very dangerous. Large tree roots hold soil and sediment in place. Without trees to hold soil in place the sediment would wash away and could cause floods and landslides. This is an example of:
a)
Weathering
b)
Erosion
c)
Deposition
d)
Flash Flooding
17.
____________ is the one thing you change in each of your trials to get a different result each time.
a)
Independent Variable
b)
Dependent Variable
c)
Control Group
18.
_________________is the one thing you measure as a result of what you changed in each test.
a)
Independent Variable
b)
Dependent Variable
c)
Control Variable
19.
How does they type of material a dog house is made of affect the temperature inside of it. Identify the independent variable.
a)
Type of material dog house is made of
b)
The temperature inside the house
20.
Will seeds from salt marsh plants sprout in freshwater? Identify the dependent variable.
a)
Amount of seeds
b)
Type of seeds
c)
How many seeds sprout
d)
Freshwater versus Saltwater
21.
Does the temperature of the room affect student performance? Identify the test variable.
a)
Student performance
b)
Temperature
c)
Temperature versus student performance
d)
amount of tests give
22.
Does talking to a plant affect the plant's height? Identify the outcome variable
a)
height of plant
b)
type of plant
c)
talking to a plant
d)
amount of time spent talking to a plant
23.
If you increase the amount of time spent studying, your results will improve. What is I.V
a)
results of test
b)
type of test
c)
amount of time spent studying
24.
Water freezes faster than Coca Cola. What is the independent variable?
a)
Coca Cola
b)
amount of time it takes to freeze
c)
The type of liquid being frozen
25.
The less sleep you have had, the slower your reaction time. What is the dependent variable?
a)
amount of sleep
b)
where you sleep
c)
the amount of time you spend trying to go to sleep
d)
reaction time
Reset
