Starter quiz
- What name is given to the number 1000?
- one hundred
- one thousand ✓
- one million
- one billion
-
- Which of the numbers below represents one million?
- 1000
- 10 000
- 100 000
- 1 000 000 ✓
-
What is the name of the planet upon which we all live?- 'Earth' ✓
- Which picture shows a fossil?
A
B
C ✓
D
- Which of these things could not become a fossil?
plastic bottle ✓
animal
plant
- What is a fossil?
- a living organism
- a rock containing an organism
- the remains of a living organism
- the mineralised remains of a living organism ✓
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Exit quiz
- Write one thousand as a number.
- '1000' ✓
- What is the correct way to write one million?
- 100
- 1000
- 1 000 000 ✓
- 1 000 000 000
-
- What name is given to the number 1 000 000 000?
- one hundred
- one thousand
- one million
- one billion ✓
-
After studying the ages of rocks, when do scientists think the Earth was formed?- hundreds of years ago
- thousands of years ago
- millions of years ago
- billions of years ago ✓
-
- Starting with the earliest, put these events in the order they occurred.
- 1⇔cells without a nucleus evolved
- 2⇔multicellular organisms evolved
- 3⇔plants evolved
- 4⇔mammals evolved
For how much of the Earth’s history have humans existed?- all of it
- most of it
- half of it
- a tiny fraction of it ✓
-
Worksheet
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Video
Lesson Details
Key learning points
- Evidence suggests Earth was formed 4.5 billion years ago.
- One billion is one thousand million.
- Evidence suggests the first living organisms (microorganisms) appeared around 3.8 billion years ago.
- The oldest fossils are around 3.5 billion years old, and the newest fossils are around 10 thousand years old.
- Evidence suggests the first land plants appeared 500mya, the first mammals 200mya, and modern humans 350k years ago.
Common misconception
Students struggle to comprehend absolute ages of key events in the history of Earth and evolutionary history.
This lesson provides many examples and context to give students a sense of the differences in time scales involved in the history of Earth and evolution.
Keywords
Billion - One billion is one thousand million (1 000 000 000).
Thousand - One thousand (1000) is equal to 10 × 10 × 10.
Million - One million is one thousand thousand (1 000 000).
Evolution - The characteristics of species gradually change over time, sometimes forming new species. This process is called evolution.
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