Science Grade 4 Sample Questions

Q1. Heating a piece of ice can cause which change to happen?

A. A change from a liquid to a solid

B. A change from a gas to a solid

C. A change from a liquid to a gas

D. A change from a solid to a liquid

Q2. Matter that has a fixed volume but NOT a fixed shape is a

A. Solid

B. Liquid

C. Gas

Q3. Which kind of energy do you feel as a heat?

A. Mechanical

B. Electrical

C. Thermal

D. Light

Q4. An electrical circuit is

A. A tool that changes light to electrical energy.

B. A tool that changes electrical energy to light.

C. The path that an electrical current takes.

D. The flow of electric charge.

Q5. Some soil material comes from the remains of plants and animals. The material is called

A. Soil

B. Silt

C. Loam

D. Humus

Q6. Which of these is a renewable resource?

A. Oil

B. Water

C. Coal

D. Iron

Q7. What does an anemometer measure?

A. Air pressure

B. Wind speed

C. Amount of rainfall

D. Air temperature

Q8. During which season is the sun highest in the sky at noon?

A. Spring

B. Summer

C. Winter

D. Fall

Q9.What does a plant need to make its own food?

A. Sunlight only

B. Sunlight and water only

C. Carbon dioxide and water only

D. Sunlight, water, and carbon dioxide

Q.10 A plant lives in a shady area that has plenty of rain. Which of these would MOST LIKELY help the plant survive?

A. Short, thick stem

B. Very long roots

C. Very tiny leaves

D. Wide, flat leaves

Correct Answers with Explanation

Answer 1.Correct Answer is D. A change from a solid to a liquid. If a solid gets hot enough, the solid may change into a liquid. The change from a solid to a liquid is called melting.

Answer 2.Correct Answer is B. Liquid. Explanation – A liquid is matter that has a fixed volume but not a fixed shape. A liquid takes the shape of its container. If you pour a liquid from a bottle into a bowl, the shape of the liquid changes. But the amount of space that the liquid takes up stays the same.

Answer 3. Correct Answer is C. Thermal Energy. Explanation – Thermal energy moves from warmer things to cooler things. Hence you feel this energy as heat. Heat warms your hands.

Answer 4.Correct Answer is C. The path that an electrical current takes.Explanation - The circuit is made up of a battery, wire and a lightbulb. The battery is the source of electrical energy. The wire connects each end of the battery with the lightbulb. The wire has metal inside it. Electric current moves easily through the metal in the wire.

Answer 5.Correct Answer is D. Humus. Explanation – Soil is made up of remains of dead plants and animals. These remains rot and form a dark material called humus. Humus is an important part of soil because it gives plants many of the nutrients they need.

Answer 6.Correct Answer is B. Water. Explanation – Water moves from place to place on Earth in a process called the water cycle.

Answer 7.Correct answer is B. Wind speed. Explanation – An anemometer measures wind speed. An anemometer has several cups attached to a post. When wind blows into the cups, they spin around the post. The faster the wind blows, the faster the cups spin. The anemometer counts how many times it spins in a certain amount of time.

Answer 8.Correct answer is B. Summer. Explanation – During the summer, the sun is very high in the sky at noon. Days are longer and nights are shorter. Lots of sunlight makes the air warm.

Answer 9.Correct answer is D. Sunlight, water, and carbon dioxide. Explanation – To make its own food, a plant needs water, sunlight, and carbon dioxide. Water moves into the leaves from the plant’s roots and stems. The energy of sunlight enters through the leaves. Carbon dioxide, a gas in the air, also comes in through the leaves.

Answer 10.Correct Answer is D. Wide, flat leaves. Explanation – Plants in a shady area that has plenty of rain tend to have large, wide leaves. Big leaves gather more sunlight than small leaves.

Review Topics of STAAR Exam

For more questions Study Guide and Preparation- State of Texas Assessments of Academic Readiness (STAAR)

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