Science STAAR Review C

A student prepared a snack that consisted of grapes, pecans, and strawberries sprinkled with white powdered sugar. The student stored the snack in a refrigerator. An hour later the student observed that the powdered sugar could no longer be seen but the fruit and nuts had not changed in appearance. What most likely happened to the sugar in the mixture?

• The sugar evaporated at the lower temperature in the refrigerator without causing any changes to the fruit and nuts.

• The sugar was more dense than the other foods in the mixture, so it settled to the bottom of the container.

• The sugar dissolved in the moisture on the fruit.

• The sugar absorbed energy from the nuts and melted into a colorless liquid.

The chart lists plants and animals interacting with parts of an environment. Which statements describe an animal interacting with a living part of the environment?

• Statements 1, 4, and 6 only

• Statements 1, 3, and 5 only

• Statements 2, 5, and 6 only

• Statements 2, 3, and 4 only

Tags

NGSS.MS-LS2-1

A student drew the following pictures to show the day-night cycle of Earth.

Based on the pictures, how many hours should the student record on the nighttime picture to complete a day-night cycle?

• 11 hours

• 12 hours

• 13 hours

• 24 hours

Tags

NGSS.MS-ESS1-1

A student uses a flashlight to shine a beam of light on three different objects.

Which table describes what happens to the light beam as it interacts with each object?

• 
• 
• 
• 

Tags

NGSS.MS-PS4-2

White oak trees grow to be 24 to 30 meters tall. Their long branches are covered with leaves, and their roots reach deep into the soil to hold the tree in place. White oaks drop their leaves during the winter months.

In which ecosystem would forests of white oak trees be most likely to survive?

• Ecosystem 1

• Ecosystem 2

• Ecosystem 3

• Ecosystem 4

Tags

NGSS.MS-LS2-1

A three-step process is shown.

Which of these are most likely formed by the process shown?

• Glaciers

• Mountains

• Sand dunes

• Sedimentary rocks

Tags

NGSS.MS-ESS2-2

A group of students is given four small cubes of the same size and instructed to place them in a beaker of water. One cube floats to the surface of the water. Two of the cubes float in the middle of the beaker under the surface of the water. The last cube sinks to the bottom of the beaker. Which conclusion is best supported by what the students observed?

• Two of the four cubes are soluble in water.

• All four cubes have different masses.

• Each cube is made of a different type of solid material.

• One of the cubes is more dense than the other three.

Which effect would most likely occur if a six-lane highway were built through an ecosystem?

• Competition for resources would be reduced.

• Habitats available to animals would be reduced.

• Air pollution would decrease.

• Water pollution would decrease.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Students investigate force. The masses they use begin at rest on the ramp. The setup the students use is shown.

Which change will reduce the amount of force needed to move the masses?

• Decrease the height of the ramp

• Increase the height of the ramp

• Add an additional mass

• Pull the spring scale with two hands

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Students record characteristics of a tomato plant. One student’s list is shown.

Which tomato plant characteristic is least likely to be inherited?

• Flower color

• Leaf shape

• Type of roots

• Number of tomatoes

Tags

NGSS.MS-LS1-5

NGSS.MS-LS3-2