Meteorites Asteroids and Comets Physics Worksheet
Description
Part 1:
- What are Centaur objects? ____________
- Comet Hyukatake, which visited the inner solar system in 1996, is a long-period comet. Where did this object probably originate? ___________
- What are Apollo objects and Amor objects? _____________________
- Which characteristics of asteroids are used to classify them?
____________________________________
- What do stony meteorites being most common type of falls, indicative of? __________________________________
- All of the dwarf planets (except for Ceres) are _____________ objects.
- What are the two types of tails that comets have?
- _________________
- _________________
- Describe what process makes the composition of achondrites similar to Earthàbasalts? __________________________
- Two common sources of meteors are ___________________. Whatàthe Meteorites on ground are most likely come from ______________.
- Explain why comets have limited lifetimes?
- How could a meteorite impact lead to the cooling of the Earthàclimate? __________________________________
- Differentiate the S-, C- and M-type asteroids. ______________________________________
- Typical period of long period comets is ___________
- Long term comets are objects that fall inward from ___________, a spherical cloud of icy bodies that extends from about 10,000 to 100,000 AU from the Sun on all sides.
- Read ¥w data on /t Saturn%xoplanet is a áme changer,3cientists say!rticle. Write a 10 15 sentence summary of this article.
https://www.cnn.com/2022/11/24/world/wasp-39b-bocaprins-webb-atmosphere-discovery-scn/index.html
Part 2:
- Read ¥search sheds new light on intelligent life existing across the galaxy Write 5-10 sentence summary of this article
https://phys.org/news/2020-06-intelligent-life-gal…
2. Genes are connected together in structures called _______________ which are essentially single, long ___________ .
3.Proteins are made of combinations of _______________ acids.
4. Genetic information is stored in the DNA molecule in the sequence of the four bases that are the µngs/f the DNA !dder Give the full names of these four bases. __________________________________________________________________
5. How can new patterns of DNA arise in nature? __________________________________________________________________
6.The first cells must have been simple, single-celled organisms similar to modern _______________.
7. The presence of stromatolites indicates that life on Earth began no earlier than _________________ years ago.
8. What are some possible energy sources that may have led to the formation of complex organic molecules early in Earth’s history? __________________________________________________________________
9. _______________ are life forms that can survive in extremely high temperatures, such as near volcanic vents.
10. Besides the Earth, where would be the most likely place to look for life in our solar system? ________________________
11. Saturnàmoon Titan has a nitrogen atmosphere and contains organic molecules. However, life is unlikely to develop there. Why is this? ___________________
12.The ____________________ is the area around a star where the temperature is moderate enough for liquid water.
13. What is Astrobiology? ____________________________________
14. What information does the Drake equation give us? _____________________
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