Worksheets4th Grade Unit 7 Rocks and Fossils
Total questions: 18
Worksheet time: 14mins
The oldest layer of rock is always on the _________________.
bottom
top
middle
anywhere it wants to be
The youngest layer of rock is always on the ______________.
bottom
top
middle
anywhere it wants to be
The of age of one thing compared to another is called ___________________
relative age
age
your birthday
comparitive age
Rock layers are usually _________________.
flat
zig zags
bumpy
slimy
Earthquakes can change land very _________________.
quickly
slowly
Which of the following are examples of slow changes to rock layers? Choose all correct answers.
A river cuts a canyon into rock
Rocks are broken by an earthquake
Glaciers carve a valley into the rock
Pressure from above presses sediment into rock
Which of these are true of rock layers? Choose all correct answers.
They are always flat
They can be different ages
They can only change during earthquakes
They can change slowly or quickly
They can bend or break
The remains or traces of an organism that lived long ago is a _____________.
fossil
egg
extinct
endangered
Organisms that are no longer found on earth are __________________.
extinct
endangered
fossils
alive
Aquatic fossils lived in ________________.
water
land
Terrestrial fossils lived on _______________.
water
land
What do some fossils and modern-day organisms have in common? Choose all correct answers.
They are the same age
They may be related
They may have similar body structures
They all come from rock layers
Which statement is true about fossils?
Fossils can tell us what animals looked like millions of years ago
Fossils are never organisms that lived in the sea
Fossils found today are always terrestrial fossils
Fossils can tell us how animals become extinct
What is the most reliable way to judge the age of a rock by layer?
The lower the layer, the older the rock
The higher the layer, the older the rock
The lower the layer, the younger the rock
The lighter the layer, the older the rock
Petrified trees in the desert are evidence that there was once far more ____________________ in the area.
water
land
birds
fish
Which present day organism has been found in fossilized form?
Ferns
Irish Elk
Mosasaurs
Giant Short Faced Bears
True or False: Environments do not change over time
False
True
True or False: Layers of rock show how an environment changes
True
False
