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WorksheetsWhy Did Dinosaurs Go Extinct Mystery 6
Total questions: 19
Worksheet time: 10mins
Dinosaurs went extinct nearly ______________ years ago?
25 million
65 million
10 million
100 years
How long did dinosaurs live on the Earth
for about 165 million years
for about 100 million years
for about 10 million years
for about 17 million years
TRUE or FALSE Fossils are the remains or traces of ancient life that have been preserved by natural proces
TRUE
FALSE
If a dinosaur had sharp teeth it is a good assumption they were a ___________________________
carnivore
omnivore
herbivore
If a dinosaur had broad flat teeth it is a good assumption
carnivore
omnivore
herbivore
If a dinosaur had a beak it is a good assumption they were a _______________________.
carnivore
omnivore
herbivore
Fossilized poop is called ___________________
yawl
crappies
nippo
coprolites
By looking at fossilized poop scientists can determine ____________________________________.
how long its legs were
what type(s) of food it had been eating
what time of day it liked to eat
where it liked to eat
When did the Cretaceous Period exist
10 years ago to yesterday
100 billion years ago to 100 years ago
100 million years ago to 100 years ago
145.5 million years ago-66 million years ago
Radio Metric Dating allows scientists to determine ___________________________________.
what is inside things
the date by listening to the radio
the age of an artifact by testing the radioactive isotopes
if something is a solid, liquid, or a gas
What do scientists believed happened at the Chicxulub Crater?
a flood
a hurricane
a tornado
an asteroid hit that area
How big was the asteroid that hit the Chicxulub Crater?
100 feet in diameter
2 miles in diameter
7 miles in diameter
100 miles in diameter
What two things occurred because of the asteroid hitting the Chicxulub Crater (CHECK 2)
large tsunami
holiday
hurricane
burning of trees
crops started to grow
What two things resulted in the asteroid hitting the Earth at the Chicxulub Crater? (CHECK 2)
dust
sun all day
coupons
vapor
green plants
What gave Luis & Walter Alvarez their idea that dinosaurs were wiped from the Earth by an asteroid?
a dust layer left behind
a big moutain
the big bang happened at their house
they saw a space ship & thought up this must have happened
There was a volcanic eruption in Indonesia which resulted
"A lapse in Time"
"A Year Without Summer"
"A Day & Night Without Time"
"One Who Flew South for a Day"
Another result of the volcanic eruption was there was a blockage of sunlight to the Earth which caused a ____________. Plants & crops had a difficult time growing.
praise
harvest
famine
feast
At the end of the Cretaceous Period, what percent of animals were extinct?
25%
50%
75%
10%
Name three reasons 25% of the animals survived near the end of the Cretaceous Period. (Check Three)
They were small
They were big
They were omnivores
They hibernated/could live under ground
They ate a big meal right before the volcanic eruption
