alphabet

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• Ecosystem: A community of living organisms.

• Friction: Force resisting motion.

• Gravity: Force attracting objects.

• Hypothesis: Educated guess in science.

• Inertia: Tendency to resist change.

• Joule: Unit of energy.

• Kinetic energy: Energy of motion.

• Lever: Simple machine.

• Momentum: Mass in motion.

• Newton: Unit of force.

• Osmosis: Diffusion of water.

• Potential energy: Stored energy.

• Quantum: Small unit of energy.

• Reflection: Light bouncing off.

• Speed: Rate of motion.

• Thermal energy: Heat energy.

• Uniform motion: Constant speed.

• Velocity: Speed in a direction.

• Work: Force over distance.

• Xylem: Plant tissue.

• Yield: Breaking point.

• Zoology: Study of animals.

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