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WorksheetsGeog1 Unit 1.4 Our Time on Earth
Total questions: 15
Worksheet time: 10mins
The oldest known fossils of multicellular organisms were found in rocks older than the
Cambrian period
Precambrian period
Hadeon Era
Why do most scientists think the 6th mass extinction is occurring now?
Human activity is destroying ecosystems
animal competition is decreasing species diversity
They don't
On this clock, what time did the dinosaurs appear?
11:23
10:44
11:02
10:24
On this clock, what time did the first plants on land appear?
11:23
10:44
11:02
10:24
On this clock, what time did the first land animals appear?
11:23
10:44
11:02
10:24
What happened at 2:40?
First dinosaurs
First single cells
First plants on land
First animals on land
What happened at 10:24?
First dinosaurs
First Single cells
First plants on land
First animals in the ocean
What happened at 10:44?
First dinosaurs
First animals on land
First plants on land
First animals in the ocean
What happened at 11:02?
First animals on land
First dinosaurs
First plants on land
First animals in the ocean
What happened at 11:23?
First animals on land
First dinosaurs
First plants on land
First animals in the ocean
Look at the map. Which of these continents did we reach first?
Europe
North America
South America
Asia
Which Continent did we reach first?
Oceana
South America
Which did we reach first?
Britain
Australia
United States
What is a land bridge?
a bridge constructed of wood
where land is exposed for millions years, then covered by water
where land is exposed by the tides, then covered by water when the tide comes in.
a bridge that crosses between countries.
What letter on the map show the location the last bridge we crossed.
A
B
C
