Retake Nature of Science and Solar Systems

A science class is given the task of determining the effects that different amounts of sunlight have on the growth of potted bean plants. Each group is given four potted plants and the instruction for the investigation. Each of the four potted plants will be given different amounts of sunlight each day. Each group will measure the growth of plants every day for three weeks and record the amount of time the plant was in the sun.

Based on the investigation, what is the most important question the students must answer?

• What type of window lets in the most sunlight onto the bean plants?

• How does watering during the hottest time of the day affect bean plant growth?

• How many hours of sunlight are required for the most growth in the bean plants?

• Do bean plants grow better in dim morning sunlight or in bright afternoon sunlight?

• Earth years are shorter than Saturn years.

• Days on Jupiter are shorter than days on Mercury.

• Venus has a smaller tilt than Uranus.

• Mars is denser than Neptune

Which of these groups only contain metric measurements?

• inches, pounds, ounces

• inches, grams, ounces

• centimeters, grams, milliliters

• centimeters, pounds, milliliters

• Mars

• Saturn

• Venus

• Mercury

How would a student diagram the movement of the Earth around the sun?

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• Because salt was used, the ants ate the sugar instead.

• If ants prefer sugar, they will eat the sugar before eating the salt.

• Because the ants ate the sugar before eating the salt, they must like sugar.

• If the sugar is placed near the ant colony, the ants will eat it before eating the salt.

A student wants to model the way a planet turns on it's axis. Which is not an example of this action?

• Fan blades turning in a ceiling fan

• The spinning of a bicycle tire

• A race car circling a track

• A merry-go-round on a playground

Mars is an inner planet and Jupiter is an outer planet. Which best describes the relationship between the two planets?

• They orbit the Sun in opposite directions.

• They are made of the same materials.

• They are located on opposite sides of the asteroid belt.

• They have the same orbital periods around the Sun.

Place the inner planets in order from smallest to largest.

(a)  

Mrs. Henry's class studied the arrangements of planets in the solar system. Which planets are closest to each other?

• Mercury and Venus

• Mars and Earth

• Uranus and Neptune

• Saturn and Jupiter