Transcript Life Beyond Earth

Welcome to Science 12/14/10
• Take Comet, Asteroid, & Meteoroid HW out.
• On your piece of paper answer the following question:
• Does life exist beyond the boundaries of Earth. If no,
explain why not. If yes, explain why.
• Make sure your name is on your paper.
• Today’s Schedule
• 1. Question of the day
Solar System Test is now
Monday.
• 2. Life Beyond Earth
• 3. E.T. Creatures Activity Turn in Planet Packet if you
have not yet.
Research Day is tomorrow.
Friday is Review Day
• Do you believe that life exists beyond
Earth?
What do all living things on Earth have
in common?
• One or more cells
• Take in energy and use
it to grow/develop
• Reproduce
• Give off waste
What does the Earth provide to
sustain all life?
• Liquid water, suitable temperature range, and
atmosphere
• “Goldilocks” Condition- Earth is just right
for life to exist.
• Are these conditions necessary for life? Or are
they just necessary for life on Earth?
Extreme Conditions
• Recently, life forms have been discovered on
Earth where it was believed that no life could
ever exist.
If life does exist elsewhere in the Solar System
where would it most likely be found?
• Which planet has conditions that are most similar to
Earths?
• Streambeds on Mars. Life as we know it requires
water. Did or does Mars have the conditions needed to
support life?
Life Elsewhere in the Solar System?
• Fossils on Mars?
•
Space: Top 5 Cases For Martian Life : Video : Discovery News
Life Elsewhere in the Solar System?
• Europa- A moon of Jupiter
• Covered in ice, similar to the Arctic Ocean.
• Heat from inside Europa could keep the water
liquid.
• If there is water could there be life?
• Space: Top 5 Reasons Europa Rocks :
Stephen Hawking's Universe:
Alien Creatures
• Remember that on Earth animals have features and behaviors
that help them live, find food, and reproduce. It can be argued
that life on other planets would follow these same rules.
• To understand external plant and animal features have positive
benefits for an organism.
• To understand that plants and animals are adapted to the
environment they live in.
• To understand the different environmental conditions that are
present on other worlds.
• To create an imaginary creature that fits into a described alien
environment.
Alien Creatures
• Now it is your turn to create diverse creatures from unknown worlds. Use
what you know about different planets and moons to create a creature. Write
a short paragraph that describes each body part and it is used for.
Planet or Moon
Environment and Conditions
Venus-
very hot, sulfuric acid clouds, volcanoes, etc.
Mars-
frozen poles, strong wind, dust, no atmosphere or
ultraviolet protection
Io-
volcanoes
Europa-
frozen gases, ice, water