Equal masses of paper towel were used to soak up water from a cup. Which question can be answered from the information above?

• Which paper towel is the best buy?

• Which paper towel is most absorbent?

• Which paper towel is the most colorful?

• Which paper towel is safest for the

  environment?

To decide if plants grow better with fertilizer, a student could start growing plants and

• give them a large amount of fertilizer.

• water them and then give them fertilizer.

• give fertilizer to some plants but not to others.

• give them fertilizer and large amounts of sunlight.

What is the connection between the distance from the Sun and the period of revolution?

• The planets farther from the Sun have longer days.

• The planets farther from the Sun have longer years.

• The planets closer to the Sun have longer days.

• The planets closer to the Sun have longer years.

Which of these can cause sharp, rough mountains to become rounded and smooth over time?

• Wind and rain

• The sun’s rays

• Light and darkness

• Earth’s magnetic field

Which of these is best classified as a nonrenewable resource?

• Grass

• Aluminum

• Sunlight

• Oxygen

Which part of the water cycle is seen in the circled part here?

• Condensation

• Evaporation

• Precipitation

• Runoff

How do the heart and lungs work together?

• Movement of the lungs helps the heart pump blood

• The lungs supply oxygen to the blood that the heart pumps throughout the body

• The heart and lungs work together to digest food

• The heart pumps blood and the lungs circulate blood throughout the body

Which part of the plant takes in the most water?

• Leaf

• Flower

• Roots

• Stem

Each organism in a food chain plays a role in the flow of energy from one level to the next. In the food chain, what is the primary role of the corn?

• To be a source of energy for consumers

• To be a source of energy for carnivores

• To be a source of energy for decomposers

• To be a source of energy for producers

Raheem is investigating the properties of several substances. He prepared a beaker containing substances J, K, and L and filtered the contents through a funnel into a flask, as shown. What term best describes substances J, K, and L inside the beaker before Raheem poured them through the filter paper?

• Mixture

• Solid

• Compound

• Liquid