The students in Mr. LeBron's class conduct an experiment on the effect of sunlight on the growth of plants. The class puts all of their results in a chart. Carla's data is much different from everyone else's results. Which statement best explains why this has happened?

A scientist wants to test how plant food can improve the growth of corn crops. He uses the same plant food to test seedlings of four different crops of corn. The results are shown in the table. The scientist concludes that the plant food helps the corn grow. Which crop's results led the scientist to draw this conclusion?

Sharissa is conducting an experiment to see the way light affects earthworms. She sets up an experiment to observe earthworms and places a lamp at one end of the box. She covers the other end of the box to make it dark. Which of the following will Sharissa do to provide evidence for her experiment?

The students in Miss Choi's class are investigating how light affects the growth of plants. Four students each take two of the same type of plant. Each student places the other plant on the same windowsill. What would most likely explain the difference in Walt's measurement on Day 7 when compared with the other students?

The students in Mrs. Kimura's class have set up the terrarium shown below. The students take notes about the living things in the terrarium.

A. The frog is bigger than the snail.

B. The frog has spots on its back.

C. The frog likes to rest on the rock.

D. The lizard prefers to sit on the log.

Carlos observes that the Big Dipper, a star pattern, appears on the horizon in spring. In fall, the Big Dipper is farther overhead in the sky. Which of the following states the reason why the Big Dipper changes its position in the night sky from spring to fall?

Using the calendar below what would the Moon look like around the 12th of January?

Which of the following is NOT an effect of the Earth rotating ?

Which of the following is a true statement about the Moon and Earth?

A rock has layers and is made from small grains. What type of rock is it?

The class was doing a test on the properties of minerals. The tools the class used for a particular physical property were a nail, penny, and their fingernail. Marco noticed that the nail scratched his mineral but his fingernail could not. What physical property was Marco testing for?

Michael wants to make a poster that shows examples of erosion. Which of the following is NOT a good example for him to show on his poster?

Johnny is working on his computer. He knows that a nonrenewable resource is found in the computer chips inside the computer. What nonrenewable resource is found in the computer chips?

What could cause the mass of an object to change?

Martha has a big box with a mixture of paper clips. Some are metal and some are plastic. The plastic paper clips come in four different colors. Which is the best property for Martha to use to separate the metal paper clips from the plastic paper clips?

Which of the following would most likely not lead to rust being formed?

Jennifer is observing the physical properties of the objects in the chart shown. Which of the object can Jennifer classify as not having a magnetic attraction?

Eduardo cooks a pizza in a gas oven. Which form of energy cooks the pizza?

Look at the electrical appliances. Which of these is the best example to show that energy is the ability to cause motion?

The students in Miss Khalid's class are using rubber bands and shoe boxes to make sound instruments. They have rubber bands of different thickness. If Rubber Band A is thicker than Rubber Band B, what can the students conclude about the pitch of Rubber Band B?

Karla found this picture of a water wheel. Which of these statements would be the BEST caption Karla could use for this picture?

Jack put a tea kettle on a burner and turned on the burner. Which of the following sequences correctly describes how the heat travels?

Landon is cooking some chili on the stove as shown. What type of spoon is Landon most likely using to keep from burning his hand when he touches the spoon?

Jared and his brother are riding on the bus to school. If Jared is talking about the motion of the bus, which of these can he say is constantly changing?

Joey kicks a soccer ball as shown below. What will most likely happen to the speed of the soccer ball?

Bean plants reproduce to create new bean plants. The bean plant shown in the diagram is undergoing one of the stages in the process of reproduction. What stage is the bean plant undergoing?

The arctic hare lives in the harsh environment of the tundra. In summer, its coat is brownish or gray. In winter, its coat is bright white. Which of these is most likely the cause of this color change?

Cheryl is writing a report about animal behavior. She wants to include examples of inherited behaviors in her report. Which of the following would NOT be a correct example for Cheryl to use?

Most dragonflies undergo incomplete metamorphosis. Most butterflies undergo complete metamorphosis. What two life stages do the dragonfly and butterfly have in common?

Mr. Moselle lives in southern Florida where he has several orange trees. The trees bear fruit in summer. At certain times during the year, the trees may become dormant like many trees in the northeast. During which of the following months are Mr. Moselle's trees most likely to become dormant?

Louisa is reading a book about different ecosystems. She is learning about the variety plant and animal life in swamps. Which of the following living things in a swamp depends on the energy stored in food to survive?

Ella made this forest food chain to show how the energy of the Sun is transferred through living organisms. Which of the following describes the transfer of energy from a herbivore to a carnivore?

Kudzo is a plant that was brought to the United States over 100 years ago to help prevent erosion. There are very few animals that eat Kudzu, so it grows out of control. Which of the following BEST describes Kudzo?