STAAR Test Science

A family takes a group picture in a park where bluebonnets are blooming. The family notices that some of the blooms are white and others are blue.

The color of the blooms is most likely determined by —

• F air temperature

• G the age of the plant

• H the types of consumers that eat the plant

• J inheritance from parent plants

Tags

NGSS.MS-LS3-1

A beaker with 115 mL of solution has a temperature of 21°C. The solution contains 5 g of salt and 115 mL of water. Students added two ice cubes to the solution and stirred the solution with a stirring rod.

Which properties of the solution changed as the ice cubes melted?

• A The color and physical state of the solution

• B The temperature, mass, and volume of the solution

• C The volume, temperature, and mass of the salt in the solution

• D The physical state and temperature of the solution

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

A family was vacationing in the mountains in a cabin that had no electrical power. They needed boiling water in order to prepare dried soup mix. With no electrical energy available, which method would most likely provide enough thermal energy to quickly heat the water to boiling?

• Using a microwave oven to heat water in a glass jar for 3 minutes

• Shaking the water in a closed, insulated plastic bottle for 3 minutes

• Shining a battery-powered flashlight on a metal container of water for 10 minutes

• Placing a metal pot of water over glowing charcoal in an outdoor grill for 10 minutes

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

• A Stir the liquids, let them settle, and then identify the bottom layer as water

• B Drop a piece of ice into the graduated cylinder, let the ice settle, and then identify the layer just above the ice as water

• C Add water to the graduated cylinder, let the mixture settle, and then identify the layer that increases in volume as water

• D Carefully pour each layer into separate plastic containers, place the containers in a freezer, and then identify the liquid that takes the longest to freeze as water

Tags

NGSS.MS-PS1-2

Aquatic plants have adaptations that help them live in water. For example, the structures needed for making food are located on the tops of floating plant leaves.This adaptation helps the plants —

• absorb sunlight

• stay anchored

• avoid predators

• capture fish

Tags

NGSS.MS-LS1-6

• F Dry, rocky mountains

• G Forests of pine trees

• H Tall, spiny cacti

• J Lakes and rivers

Tags

NGSS.MS-LS2-1

What type of energy source is being used to power the solar panel?

• Sound

• Mechanical

• Thermal

• Light

If a student connects the wires as shown, which lights will appear lit?

• B, C, and D

• A and C

• A and D

• A, B, C, and D

The arrows in the diagram represent light rays. Which of the following is shown by the diagram?

• Light is being absorbed

• Light is being refracted through a convex lens

• Light is transmitting through a reflective surface

• Light is reflecting off a mirror

Tags

NGSS.MS-PS4-2

Why does the straw appear to be broken?

• The light rays that travel through the water and into the air are reflected

• The light rays are magnified

• The light rays are absorbed by the water

• The light rays that travel through the air and into the water are refracted

Tags

NGSS.MS-PS4-2