Thursday
September 18, 2014

Homework Help: science

Posted by jessie on Monday, February 11, 2013 at 9:32pm.

1. Scientists hypothesize that the sun formed ____. (1 point)
less than a billion years ago
from a cloud of gas and dust
less than a million years ago
from a chunk of Jupiter
2. Two of the inner planets are ____. (1 point)
Venus and Saturn
Mars and Venus
Earth and Pluto
Mercury and Jupiter
3. Pluto alters the orbit of which planet? (1 point)
Uranus
Saturn
Neptune
Jupiter
4. Small pieces of rock that enter Earth's atmosphere at speeds of 15 to 70 km/s and burn up are called ____. (1 point)
stars
meteors
meteorites
asteroids
5. ____ is the largest planet in the solar system, is the fifth planet from the sun, and has colorful clouds. One of its 17 moons is the most volcanically active object in the solar system. The planet has a liquid ocean and an atmosphere comprised mostly of hydrogen and helium. It may have a rocky core, although its extreme pressure and temperature would make the core different from any rock on Earth. (1 point)
Jupiter
Saturn
Uranus
Neptune
6. Water is found as a solid, liquid, and gas on ____. (1 point)
Mercury
Venus
Earth
Mars
7. Galileo used his telescope to discover evidence for the sun-centered model of the solar system. This evidence included all of the following EXCEPT ____. (1 point)
Venus going through phases
Venus revolving around the sun, not Earth
the discovery of Neptune and Pluto
both a and b
8. A main sequence star becomes a ____ after it uses up the hydrogen in its core. (1 point)
nebula
supernova
black hole
giant

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Science - Please check my answers? My textbook won't load, so i've had to use ...
History - How long ago did the first human culture, involving villages and a ...
PHYSICS - Four billion years ago the Sunís radiative output was 30% less than it...
PHYSICS-radiation - Four billion years ago the Sunís radiative output was 30% ...
Biology - PLEASE HELP!!!! 1. How many millions of years ago did sharks first ...
math - 50. 5 years ago, Jack was six less than twice of Kelly's current age. If ...
science - The Big Bang Hypothesis suggests that 20 billion years ago a) life ...
math - An executive is earning $162,000 per year. This is $10,000 less than ...
Math - The price of a brick today is 49cents. This is 3 cents less than 4 times ...
Science - 1. It is believed that in the Archeaneon (2.5-4 billion years ago) the...

Search
Members