WorksheetsClimate Change
Total questions: 22
Worksheet time: 11mins
The Earth formed _______________ years ago.
4.6
4.6 million
4.6 billion
4.6 trillion
Over the long history of Earth, its climate has ______________.
fluctuated over time
always remained the same
always been warm
always been cold
Scientists look for clues on the how the Earth's climate was at any given time by using evidence from ____________.
rocks and fossils
ice cores
trees
corals
all of the above
Scientists have tracked temperature and carbon dioxide levels and noticed that ________________.
when temperatures increase, carbon dioxide levels decrease
when temperatures decrease, carbon dioxide levels increase
when temperatures increase, carbon dioxide levels increase
Carbon Dioxide (CO2) is an example of a(n) ______________.
greenhouse gas
atom
gas that humans breathe to survive
gas produced by plants as they undergo photosynthesis
Why does the temperature on Earth increase when carbon dioxide levels in the atmosphere increase?
The greenhouse effect.
Carbon dioxide traps heat inside our atmosphere.
All of the above.
None of the above.
What did scientists use to get the data for this graph?
Coral
Ice Cores
Trees
Fossils
Natural warming cycles of the Earth are called ___________.
interglacial periods
ice ages
global warming
polar vortexes
Natural cooling cycles of the Earth are called _____________.
interglacial periods
ice ages
global warming
polar vortexes
True or False: The Earth's path around the sun never changes.
True
False
True or False: The sun naturally goes through cycles that cause the amount of energy that reaches Earth's surface to change.
True
False
How does photosynthesis change Earth's atmosphere?
by increasing oxygen levels and decreasing carbon dioxide levels
by decreasing oxygen levels and increasing carbon dioxide levels
by decreasing both oxygen and carbon dioxide levels
by increasing both oxygen and carbon dioxide levels
True or False: Oxygen has always been a part of Earth's atmosphere.
True
False
Earth's first atmosphere was mostly made of ____________.
oxygen
carbon dioxide and methane
Photosynthesis permanently changed the atmosphere by adding more ___________________ to the atmosphere while reducing the levels of greenhouse gases.
oxygen
carbon dioxide
True or False: Volcanic eruptions can warm the planet by spewing carbon dioxide into the atmosphere along with lava.
True
False
True or False: Volcanic eruptions can cool the Earth by spewing ash into the atmosphere that blocks the sun's energy from reaching the Earth's surface.
True
False
True or False: Volcanic eruptions can both warm and cool the planet.
True
False
The rate of change of Earth's has become more dramatic since ________________________.
World War II
The Industrial Revolution
The Revolutionary War
European settles arrived in the new world.
Scientist track ______________ to better understand climate change?
levels of greenhouse gases in the atmosphere
the signs of climate change
temperature changes over long periods of time
all of the above
Which one is NOT one of the 4 Natural Causes of Climate Change?
Changes in Earth's orbit (shape) and tilt of Earth's axis.
Changes in the Sun's energy due to sun spot cycles.
Carbon dioxide moving into the atmosphere through Photosynthesis.
Trains, planes and automobiles adding carbon dioxide to the atmosphere.
Volcanic activity adding carbon dioxide into the atmosphere.
Which is NOT one of the man made causes of Climate Change?
Factories sending pollution into Earth's atmosphere.
Increasing numbers of sunspots sending more energy to Earth's surface.
Cows from the agricultural industry sending methane into the atmosphere.
Burning fossil fuels and adding carbon dioxide to the atmosphere.
