STAAR 2019 Q 1-10 do in journal

Which of these correctly compares the lacewing life cycle with the frog life cycle?

• Adult lacewings lay eggs, but adult frogs give birth to live larvae.

• When they hatch, young lacewings and young frogs look different from their adult forms.

• When they hatch, both lacewings and frogs have long legs for jumping.

• Both adult lacewings and adult frogs have more legs than they had as larvae.

Which of the following explains how water undergoes a change of state in one stage of the water cycle in order to move from the ocean’s surface into the air?

• Liquid water that is heated by the sun becomes a gas and rises.

• Gaseous water rises as it is cooled by the ocean.

• Liquid water that is heated by the sun condenses into rain.

• Gaseous water collects in drops of fog above the ocean’s surface.

Which change occurs when lemon juice is mixed with water?

• The mass of the lemon juice decreases.

• The water becomes a solid.

• The lemon juice dissolves and spreads out evenly in the water.

• The volume of the water decreases.

Which statement describes the type of ecosystem in which duckweed can most likely be observed?

• A wetland ecosystem with slow-moving water

• A coastal ecosystem with constant rough waves

• A desert ecosystem where rainfall drains away quickly

• An underground river ecosystem where the temperature remains constant

Which actions will make moving the cart in one direction easiest for the students?

• Student 1 pulls the cart to the left while Student 2 pulls the cart to the right.

• Student 1 pulls the cart to the left while Student 2 pushes the cart to the left.

• Student 1 pushes the cart to the right while Student 2 pushes the cart downward.

• Student 1 pushes the cart to the right while Student 2 pulls the cart upward.

Which statement correctly describes how a landform is formed?

• A lake is formed when flowing water carves out the sides of a canyon.

• A mountain range is formed when glaciers slowly move across the landscape.

• A delta is formed at the mouth of a river when flowing water slows and deposits sediment.

• A U-shaped valley is formed when winds pick up and move sediment away from the landscape.

What does the picture demonstrate about light?

• Light and its reflections travel in straight lines.

• Light cannot reflect from more than one surface.

• Light that goes through water cannot travel in straight lines.

• Light can travel in a circular path.

Which list contains only animals that receive energy transferred directly from consumers in this food web?

• Red-tailed hawks, snowshoe hares, and caterpillars

• Snowshoe hares and caterpillars

• Snowshoe hares and shrews

• Shrews and red foxes

Which material is the best conductor of electricity?

• Copper

• Wood

• Rubber

• Glass

What property makes a material a good insulator?

• It allows heat to pass through easily.

• It does not allow electric current to pass through easily.

• It is always made of metal.

• It can be stretched into wires.