Benchmark Review 1-4

Which of the following is true about all planets in our solar system?

• All planets have an elliptical orbit

• All planets have a moon

• All planets complete one revolution about every 365 days

• All planets have the same surface temperature

Will Saturn have a shorter or longer orbit than Jupiter and why?

• Shorter, because Saturn is closer to the sun than Jupiter

• Shorter, because Saturn is farther away from the sun than Jupiter.

• Longer, because Saturn is closer to the sun than Jupiter

• Longer, because Saturn is farther away from the sun than Jupiter.

Will Mercury have more or less moons or satellites than Mars and why?

• More, because Mercury has a greater gravitational pull than mars

• More because Mercury has less of a gravitational pull than mars

• Less because Mercury has a greater gravitational pull than mars

• Less because Mercury has less of a gravitational pull than mars

• Electromagnetic attraction between the Sun and Venus

• Gravitational attraction between the Sun and Venus

• Electromagnetic attraction between Mercury and Venus

• Gravitational attraction between Mercury and Venus

An object will continue to move in a straight line unless acted on by an unbalanced force. Which of the following best explains Earth's motion?

• An object will continue to move in a straight line unless acted on by an unbalanced force. Which of the following best explains Earth's motion?

• The gravitational force pulling Earth towards the Sun is equal to the force pulling the sun towards the Earth, so there is no force acting on Earth.

• The sun moves in an elliptical orbit around the Earth, and the Sun's gravity pulls earth along

• Earth moves in an elliptical orbit around the Sun because the gravitational force of the Sun attracts the earth.

Use the image below to answer the question: Silicon Dioxide is an example of:

• A mixture

• A solution

• An element

• A compound

Which of the following is classified as an element?

Iron, Water, Salt or Carbon Dioxide

• Iron

• Water

• Salt

• Carbon Dioxide

A small piece of Magnesium (Mg) metal burns in the air creating a very bright light. When it is finished burning, there is only a powdery white substance in its place. Which of the following statements best explains the presence of the white powder?

• The white powder was the magnesium (Mg) metal changing into a different element

• The white powder atoms originally came from the atmosphere

• The white powder is a combination of the magnesium (Mg) and something in the oxygen

• None of the above.

During a science class experiment, a teacher placed a small amount of sodium metal into 25 mL of water. Which of the following would be the best evidence that a chemical change has taken place?

• The sodium stays on the surface of the water

• A gas is given off

• The sodium appears smaller

• The liquid remains colorless.

Which element (which is essential for human life) is found in large amounts in both Earth's atmosphere and oceans?

• Helium

• Chlorine

• Oxygen

• Calcium