Is there life beyond earth?
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What are the “Goldilocks” conditions? | the conditions that allow life to exist
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| Is there life on Mars? | scientists have not yet found evidence for life
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| What is life other than that on Earth called? | extraterrestrial life
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| What are the three “Goldilocks conditions” on Earth that life as we know it must have to exist? | liquid water, suitable temperature range & suitable atmosphere
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| Where has life been found on Earth that suggests life forms may not always need the “Goldilocks conditions”? | deep in the ocean, in caves, inside solid rocks, and in hot springs
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| Why is Mars the most obvious place to look for living things like those on Earth? | it is the planet with conditions that are most similar to those on Earth and it once had liquid water on its surface
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| Why do scientists hypothesize that Mars may once have had the conditions needed for life to exist? | it has regions that were almost certainly formed by flowing water and life as we know it requires water to exist
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| A meteorite from Mars found in Antarctica in 1996 shows tiny shapes that look like what? | fossils
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| Which spacecraft tested the soil of Mars for signs of life? | laboratories on two Viking lander spacecraft
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| What suggests that there might be liquid water on Europa? | close-up views from Galileo show that Europa’s ice has broken up and re-formed, which is similar to patterns that occur in the ice crust over Earth’s Arctic Ocean
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| If there is liquid water on Europa, what else might there be? | life
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| What do scientists know so far about Mars? | there are surface features that appear to have been formed by liquid water
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| What do scientists know so far about Europa? | it has a smooth, ice crust with cracks
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| What do scientists hypothesis about Mars? | it may once have had the conditions needed for life to exist
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| What do scientists hypothesis about Europa? | there is a liquid ocean under it’s ice
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| What is a hypotheses? | a prediction based on observations
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Created by:
lprinke
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