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KS2 Science Flashcards

6 cards from real KS2 SATS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 KS2 Science flashcards as text

  1. What is the difference between a habitat and an ecosystem?

    Answer: A habitat is where an organism lives; an ecosystem includes all organisms and their environment

    A habitat is the specific environment where a particular organism lives (e.g., a pond). An ecosystem includes all the living organisms in an area AND their physical environment and interactions.

  2. What force opposes the motion of an object moving through air?

    Answer: Air resistance

    Air resistance (also called drag) is the force that opposes the movement of an object through the air. It acts in the opposite direction to motion. Streamlined shapes reduce air resistance.

  3. What is the function of chlorophyll in plants?

    Answer: To trap light energy for photosynthesis

    Chlorophyll is the green pigment found in chloroplasts in plant cells. Its function is to absorb light energy (mainly red and blue wavelengths) from the Sun to power photosynthesis.

  4. Which of the following is an example of a reversible change?

    Answer: Melting ice

    Melting ice is reversible because liquid water can be refrozen back into ice. Burning, cooking, and rusting are irreversible changes — you cannot return the substance to its original form.

  5. What is the geocentric model of the solar system?

    Answer: The Earth is at the centre

    The geocentric model (proposed by ancient astronomers including Ptolemy) placed Earth at the centre of the universe, with the Sun and planets orbiting it. This was replaced by the heliocentric model.

  6. What is the name of the force that a surface exerts on an object resting on it?

    Answer: Normal reaction force

    The normal reaction force (or normal force) acts perpendicular to a surface, pushing up against an object resting on it. It balances gravity for stationary objects on a flat surface.

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