Staar Interim

Students are baking a cake. They mix together all the necessary ingredients and pour them into a pan. Then they place the pan into the oven to cook for 40 minutes. Which statement BEST explains why baking a cake is evidence of a chemical reaction?

• The state of matter of some of the ingredients changed while being cooked.

• The total mass of the ingredients was the same before and after they were cooked.

• The temperature of the ingredients increased as they absorbed thermal energy from the oven.

• The ingredients formed a new substance after they were cooked in the oven.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Two students push on the opposite sides of a crate, with the force applied by each student in newtons (N), as shown in the diagram. Assuming the crate is on a frictionless surface, describe the effect of these forces on the crate. Part 1: Which way will the crate move?

• To the right

• To the left

• Will not move

• We cannot tell from the information given.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Two students push on the opposite sides of a crate, with the force applied by each student in newtons (N), as shown in the diagram. Assuming the crate is on a frictionless surface, describe the effect of these forces on the crate. Part 2: What is the direction and the magnitude of the net force on the crate? Fill in the blanks below. Use NUMBERS ONLY for the magnitude of the net force and use LOWERCASE TEXT ONLY for the direction. The magnitude of the net force is ___ N and the direction is to the ___.

• The magnitude of the net force is 13 N and the direction is to the left.

• The magnitude of the net force is 0 N and the direction is to the left.

• The magnitude of the net force is 10 N and the direction is to the right.

• The magnitude of the net force is 10 N and the direction is to the left.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A student sets a 0.4 kilogram (kg) soccer ball on the ground and gives it a hard kick. The ball traveled a distance of 37 meters (m). The acceleration of the ball was 2,550 meters per second squared (m/s2). Based on the data, how much force in newtons (N) did the student apply to the ball?

• 14.8 N

• 0.89 N

• 1,020.0 N

• 6,375.0 N

Tags

NGSS.HS-PS2-1

A student is modeling how sunlight affects different locations on Earth. The student uses a globe and a flashlight as shown. Based on the model, which statement is correct?

• Locations J and M will be experiencing daytime in 12 hours.

• Locations K and L will be experiencing daytime in 24 hours.

• Locations J and K will be starting to experience nighttime in 12 hours.

• Locations L and M will be starting to experience nighttime in 24 hours.

Tags

NGSS.MS-ESS1-1

According to the diagram, which type of star did the astronomer discover?

• White dwarf

• Giant

• Main sequence

• Supergiant

Tags

NGSS.HS-ESS1-3

A Hertzsprung-Russell diagram is shown. Which statement supports the answer to Part A?

• The star is cool and bright compared to other types of stars

• The star is hot and bright compared to other types of stars

• The star is cool and dim compared to other types of stars

• The star is hot and dim compared to other types of stars

A student draws models of Earth and the sun in different positions. Which drawing should be used to represent summer in the Southern Hemisphere?

• A

• B

• C

• D

Tags

NGSS.MS-ESS1-1

Which of the following generally describe the position of our sun, often called Sol by astronomers, in the Milky Way galaxy?

• Sol is found close to the galactic core and orbits within the Milky Way more slowly than the galactic arms

• Sol is found near the periphery of the Milky Way and orbits faster than the galactic arms

• Sol is found at approximately one-half galactic radius from the center of the Milky Way and orbits at approximately the same speed as the galactic arms

• Sol is found at the geometric center of the Milky Way galaxy and does not move within the Galaxy.

Tags

NGSS.MS-ESS1-2

The table shows characteristics of three unknown materials. How could the materials BEST be classified?

• X: Metal, Y: Metalloid, Z: Nonmetal

• X: Metalloid, Y: Metal, Z: Nonmetal

• X: Nonmetal, Y: Metal, Z: Metalloid

• X: Metalloid, Y: Metal, Z: Nonmetal