Grade 3
1. Which science process involves using your senses to gather information about an object?
A. Predicting
B. Measuring
C. Observing
D. Classifying
C. Observing
1. Which statement best describes a chemical property of a material?
A. It has a certain color.
B. It has a certain shape.
C. It can burn or react with another material.
D. It can be measured with a ruler.
C. It can burn or react with another material.
1. Which statement correctly describes a liquid?
A. It has a definite shape and definite volume.
B. It has no definite shape but has a definite volume.
C. It has no definite shape and no definite volume.
D. It cannot be measured.
B. It has no definite shape but has a definite volume.
1.
Which sequence correctly represents the change of state when ice is heated until it becomes water vapor?
A. Solid → Liquid → Gas
B. Liquid → Solid → Gas
C. Gas → Liquid → Solid
D. Solid → Gas → Liquid
A. Solid → Liquid → Gas
2. Lara wants to know the length of her pencil. Which tool should she use?
A. Hand lens
B. Ruler
C. Scissors
D. Balance
B. Ruler
2. Why is it dangerous to burn plastic waste?
A. It makes the plastic heavier.
B. It can produce harmful substances.
C. It makes the plastic easier to recycle.
D. It changes plastic into water.
B. It can produce harmful substances.
2. Which of the following is an example of a gas?
A. Ice
B. Cooking oil
C. Air
D. Stone
C. Air
2. Which situation shows an irreversible change?
A. Ice melting into water
B. Water freezing into ice
C. Paper being folded
D. Wood being burned into ash
D. Wood being burned into ash
3. Which material is best described as hard, shiny, and able to conduct electricity?
A. Paper
B. Cotton
C. Copper
D. Rubber
C. Copper
3.
A wooden stick is burned. Which change is most likely to occur?
A. It becomes exactly the same wooden stick after cooling.
B. It changes into ash and other substances.
C. It becomes frozen wood.
D. It becomes a larger piece of wood.
B. It changes into ash and other substances.
3. What happens to ice when enough heat is added?
A. It changes from solid to liquid.
B. It changes from liquid to solid.
C. It changes from gas to solid.
D. It remains unchanged.
A. It changes from solid to liquid.
3. A mixture contains iron filings and sand. Which method is most appropriate for separating the iron filings from the sand?
A. Evaporation
B. Filtering
C. Using a magnet
D. Decantation
C. Using a magnet
4. A plastic bottle is no longer needed. Which action is most appropriate?
A. Burn it
B. Throw it into a river
C. Leave it on the ground
D. Reuse or recycle it
D. Reuse or recycle it
4.
A community has a problem with large amounts of biodegradable kitchen waste. Which science-based solution is most appropriate?
A. Burn all the waste
B. Throw it into a river
C. Compost the biodegradable waste
D. Mix it with plastic waste
C. Compost the biodegradable waste
4. A learner wants to determine whether air has mass. Which equipment would be most useful?
A. Ruler and hand lens
B. Balance and appropriate containers
C. Scissors and thermometer only
D. Measuring cup and ruler only
B. Balance and appropriate containers
4. Which situation is an example of decantation?
A. Using a magnet to remove iron filings
B. Pouring the clear liquid away from settled solid particles
C. Using a sieve to separate different-sized solids
D. Heating salt water until the water evaporates
B. Pouring the clear liquid away from settled solid particles
5. A piece of clay is pressed and shaped into a small pot. What happened to the material?
A. Its shape changed, making it useful
B. It completely disappeared
C. It changed into a gas
D. It became a liquid
5. A piece of clay is pressed and shaped into a small pot. What happened to the material?
A. Its shape changed, making it useful
B. It completely disappeared
C. It changed into a gas
D. It became a liquid
5. A Grade 4 learner wants reliable information about the harmful effects of burning household waste. Which source is most appropriate?
A. An official health or environmental agency
B. An anonymous social media comment
C. A rumor from a neighbor
D. An advertisement for a product
A. An official health or environmental agency
5.
A learner wants to investigate whether water temperature affects how quickly ice melts. Which factor should be changed?
A. The temperature of the water
B. The amount of ice and temperature of the water at the same time
C. The container, amount of ice, and water temperature
D. Every condition in the experiment
A. The temperature of the water
5. A learner investigates whether sugar dissolves faster in hot or cold water. To make the investigation a fair test, which should be done?
A. Change the water temperature while keeping other important conditions the same.
B. Change the temperature, amount of sugar, and amount of water together.
C. Use a different amount of sugar in every trial.
D. Perform only one trial and choose the result that looks best.
A. Change the water temperature while keeping other important conditions the same.