5th Grade Science Challenge

What is an ecosystem?

• An ecosystem is a single organism in a controlled environment.

• An ecosystem is a man-made structure for storing data.

• An ecosystem is a type of weather pattern.

• An ecosystem is a community of living organisms in conjunction with the nonliving components of their environment, interacting as a system.

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Name the different components of an ecosystem.

• Living components and non-living components

• Flora and fauna

• Producers and consumers

• Biotic components and abiotic components

Explain the concept of a food chain.

• A food chain is a sequence of organisms where each organism consumes only plants and not other animals.

• A food chain is a linear sequence of organisms where each organism consumes the one below it and is consumed by the one above it.

• A food chain is a circular sequence of organisms where each organism consumes the one below it and is consumed by the one above it.

• A food chain is a random sequence of organisms where each organism consumes any other organism it encounters.

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How do producers contribute to an ecosystem?

• Producers convert sunlight into energy through photosynthesis.

• Producers rely solely on animal predation for survival

• Producers release carbon dioxide into the atmosphere

• Producers consume energy from other organisms

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What is the role of decomposers in an ecosystem?

• Decomposers break down dead organisms and organic matter, releasing nutrients back into the ecosystem.

• Decomposers regulate the climate in an ecosystem.

• Decomposers create new organisms in an ecosystem.

• Decomposers are responsible for pollination in an ecosystem.

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Define force in terms of science.

• Force is a type of matter in science.

• Force in science is any interaction that, when unopposed, will change the motion of an object.

• Force is the same as energy in science.

• Force is a unit of measurement in science.

What are the different types of forces?

• Centripetal force, Tension force, Spring force, Kinetic force

• Gravitational force, Electromagnetic force, Weak nuclear force, Strong nuclear force

• Magnetic force, Electric force, Nuclear force, Frictional force

• Thermal force, Chemical force, Elastic force, Inertial force

Tags

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Explain the concept of gravity and its role in force.

• Gravity is a fictional concept created by scientists.

• Gravity only affects objects on Earth, not in space.

• Gravity is the same as magnetism.

• Gravity is the force of attraction that exists between any two masses in the universe. It is responsible for keeping planets in orbit around the sun and objects on Earth from floating away.

Tags

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What is matter?

• Anything that has color and shape.

• Something that cannot be seen or touched.

• Everything that exists in the universe.

• Anything that has mass and occupies space.

List the three states of matter.

• plasma

• solidus

• vapor

• solid, liquid, gas