PSLE Science – General Practice Test

These questions are part of the practice quiz. Start practicing

• What do you call an animal that is consumed by other animals?
• What is the primary function of chlorophyll?
• What part of the Earth’s structure is made mostly of iron and nickel?
• What is meant by "pollination"?
• Name one way that human activities can impact the environment.
• What is the main source of energy for the process of photosynthesis?
• What is the impact of pollution on ecosystems?
• What is an open circuit?
• Which of the following best describes a producer in an ecosystem?
• Which component is NOT part of the carbon cycle?
• Which is an example of a non-renewable resource?
• What are the tiny openings on the underside of a leaf that allow for gas exchange?
• What is the main function of chlorophyll in plants?
• What are the three states of matter?
• Which gas is produced during the respiration of living organisms?
• What do we call the solid part of the Earth, including rocks and soil?
• Describe the water cycle.
• What is the primary gas released during photosynthesis?
• Which term is used to describe the force that pulls objects toward the Earth?
• What term describes resources that are not replaceable and take a long time to be naturally replenished?
• What is the main function of the lungs?
• What are the main layers of the Earth?
• What do you call an animal that primarily feeds on plants?
• What is the term for the study of weather conditions?
• What is the pH scale used for?
• What is the function of the skeletal system?
• What does the term "niche" refer to in ecology?
• Which layer of the atmosphere contains the ozone layer?
• What component in blood is responsible for transporting oxygen?
• How does gravity affect objects on Earth?
• What is the process by which gas changes into a liquid due to cooling?
• What is the term for the combination of water and carbon dioxide in photosynthesis?
• What is the term for the process by which plants release water vapor into the atmosphere?
• What is a common outcome of natural selection on a population over time?
• Which method of reproduction involves a new cell forming by growing out from a part of the parent cell?
• What is the significance of the ozone layer?
• Which of the following organisms are primarily made up of one cell?
• What principle underlies the concept of mass in relation to matter?
• What material is known to prevent the transfer of heat or electricity?
• What is habitat loss?
• What is biodiversity conservation?
• What is the main environmental issue caused by increased emissions of carbon dioxide?
• What is the primary function of the roots of a plant?
• What is the unit of measurement for mass?
• What is a potential effect of habitat destruction on biodiversity?
• How are sedimentary rocks formed?
• What does the term "habitat" refer to?
• Which part of the digestive system is responsible for absorbing water and minerals?
• What describes the greenhouse effect?
• Which statement is true regarding the impact of pollution?
• Which of the following can result from natural selection?
• Which gas do humans exhale that plants use for photosynthesis?
• What do we call actions that make the environment dirty and unsuitable for living?
• What is a colorless, odorless, and inert gas that makes up 78% of air?
• What do you call the energy stored in an object due to its position?
• What is one effect of habitat loss on organisms?
• What is it called when an object decreases in size or volume due to loss of heat?
• What is the role of the heart in the circulatory system?
• What is referred to as the ability of a material to be bent easily without breaking?
• What are the main components of soil?
• What do we call the process by which liquid changes into gas?
• In which layer of the Earth do tectonic plates exist?
• What is the process by which plants make their own food using sunlight?
• Which layer surrounds the cytoplasm of a cell and regulates what enters and exits?
• What is the hardest naturally occurring substance on Earth?
• What do we call the movement of Earth’s plates?
• In which part of the plant does photosynthesis primarily occur?
• What is the role of sunlight in photosynthesis?
• What represents the food relationship and the transfer of energy among organisms?
• What type of rock is formed from cooled molten lava?
• Which planet is known for its prominent rings?
• What term is used to describe an animal that eats both plants and other animals to derive energy?
• What term describes the flow of electrical energy through a conductor?
• What is the term for animals that only eat plants?
• What are characteristics passed down from the genes of animals called?
• What are the five senses?
• What term is used for an organism’s role in its environment?
• What is the significance of a habitat's biodiversity?
• What factor in an experiment can be changed to determine its effect?
• What do we call the change of state from gas to liquid?
• What is the function of the nervous system?
• How does natural selection primarily function?
• What term is used to describe how organisms protect themselves or adapt to their environment?
• What characteristic of an object allows air and water to move through it easily?
• Which form of energy is responsible for changes in temperature in objects and their surroundings?
• What type of energy is associated with the compression or stretching of an elastic material?
• What is a group of living things of the same kind living together in the same habitat called?
• Which small organisms can cause diseases in other living things?
• How can the process of natural selection contribute to evolution?
• What are the three states of matter?
• What is the primary role of the respiratory system?
• What characteristic allows organisms to adapt efficiently to their environment?
• What do we call animals that eat both plants and other animals?
• What are the two main categories of energy?
• What is a habitat?
• What is the chemical formula for water?
• What role do decomposers play in the ecosystem?
• What form of energy comes from the Sun and is used for light and heat?
• Which process involves the release of oxygen as a byproduct?
• Which is a characteristic of living organisms?
• Which organelle is known as the powerhouse of the cell?
• What is known as the smallest unit of life?
• What part of the eye is responsible for focusing light?
• What is the study of living organisms called?
• What does the term "food web" represent?
• Which gas is a product of photosynthesis?
• In which part of photosynthesis is oxygen produced?
• What term describes the color, markings, or shape that help an animal blend with its surroundings?
• What is an adaptation?
• What is the primary source of energy for most ecosystems?
• Which microscopic organism is often used in the study of cell biology due to its simplicity?
• What is the process of natural selection?
• What do we call organisms that produce their own food?
• What is the law of conservation of mass?
• What is a unicellular organism that can carry out its own life functions?
• What term describes the home or environment of an organism?
• What defines a pollutant?
• In which part of the digestive system does most food digestion occur?
• What is the purpose of a habitat?
• What are the tiny discs found in plant cells that contain chlorophyll?
• What do stomata regulate in plants?
• What is a network made up of several interconnected food chains?
• Which property of a material describes its ability to withstand scratches?
• What is the term for the increase in size or volume of an object as it gains heat?
• What is the main force responsible for the water cycle?
• What is the structure that provides support and maintains the shape of plant cells?
• What is an example of a hard material mentioned?
• Which material is known for allowing heat or electricity to pass through it easily?
• Which process is essential for the survival of plants and involves the production of glucose?
• Which part of the cell contains the genetic material?
• Which type of force opposes motion between two surfaces in contact?
• How do animals primarily contribute to an ecosystem?
• Which gas is essential for the process of photosynthesis in plants?
• What is the phenomenon called when the Earth's atmospheric temperature increases due to rising carbon dioxide levels?
• Which of the following is a physical change that can occur in a substance?
• What role do advantageous traits play in natural selection?
• What is the main function of the digestive system?
• Define biodiversity.
• What do plants absorb through their leaves during photosynthesis?
• What is the process called where the male cell meets and fuses with the female cell?
• What is the primary role of xylem in plants?
• What do we call the cycle that describes the continuous movement of water in the environment?
• What role do decomposers play in an ecosystem?
• What do we call the process by which plants lose water vapor?
• Which part of the plant is responsible for reproduction?
• What is the basic unit of life?
• How does temperature typically affect the solubility of a substance?
• What is the name of the phenomenon where light bends when it passes through different mediums?
• What is one effect of the water cycle on weather patterns?
• What main characteristic defines a mammal?
• What is meant by the term mesosphere?
• What do clouds primarily consist of?
• What process do green plants use to produce food using water and carbon dioxide?
• What is an experiment?
• Which of the following best defines matter?
• What can be considered a direct consequence of pollutants in the environment?
• What term describes organisms that are composed of more than one cell?
• What is the method of heat or electricity transfer that primarily occurs in solid objects?
• Which organ in the human body is primarily responsible for pumping blood?
• What specialized cells in the human body are responsible for transmitting nerve impulses?
• What is the primary source of energy for most ecosystems on Earth?
• What is the primary function of phloem in plants?
• Which organisms can make their own food through photosynthesis?
• What type of animal does not hunt for its own food but instead feeds on dead animals left behind by predators?
• What is a food chain?
• Which of the following describes a habitat?
• What is the term for animals that live both in water and on land?
• Define the term "symbiosis."
• How does the digestive system break down food?
• Which of the following is an essential characteristic of a conductor?
• Which type of organism breaks down dead or decaying materials while producing carbon dioxide?
• What does mass measure in an object?
• How do carbon dioxide levels affect photosynthesis?
• What kind of simple machine is a lever?
• What force pulls objects toward the Earth?
• What term describes the variety of life in an ecosystem?
• What type of energy is stored in food?
• What do we call organisms that produce their own food?
• What is the difference between renewable and non-renewable resources?
• What structure in plants is responsible for transporting water?
• What is the main purpose of flowers in plants?
• What term is used for an animal that hunts other animals for food?
• What component is primarily responsible for absorbing nutrients from digested food?
• What structure in plant cells provides support and protection?
• Which of the following states that green plants produce their own food?
• What does the term ecosystem refer to?
• Which of the following is a false statement about hardness?
• Which of the following is a non-renewable energy source?
• Identify one adaptive trait of animals for survival.
• What type of energy is stored in a body as a result of its position due to height?
• What is the primary function of the root system in plants?
• Which of the following statements about pollutants is false?
• Which gas is produced by plants during photosynthesis?
• In plant cells, what substance primarily makes up the cell wall?
• What type of energy is stored in food?
• What are the basic needs of living things?
• What is an endangered species?
• What is a chemical change?
• Which part of the plant is responsible for absorbing water and nutrients from the soil?
• What is a food chain?
• What is a significant consequence of soil erosion?
• Which type of energy is stored in food and released during metabolism?
• What is the process of evaporation?
• What type of environments are most negatively impacted by habitat loss?
• What is the process of sedimentation?
• What is a producer in an ecosystem?
• What is the process called when one cell divides to create two identical cells?
• What role does the sun play in the water cycle?
• What is the main source of energy for the water cycle?
• How do producers and consumers differ?
• What is one primary benefit of natural selection?
• What do you call a magnet created by passing an electric current through a wire coil?
• What is an example of a renewable resource?
• What is the primary function of the cell membrane?
• What is an ecosystem?
• What role does the large intestine play in the human body?
• How do magnetic poles behave towards each other?
• In which part of the plant does photosynthesis primarily occur?
• Which nutrient is most crucial for building and repairing body tissues?
• Which of the following is an example of a non-renewable resource?
• Which type of plant tube carries food?
• What role do decomposers play in an ecosystem?
• What is the principle behind a lever?
• How does photosynthesis benefit the ecosystem?
• What occurs during a chemical reaction?
• Which term best describes an animal that eats plants?