Quizlet Science vocab

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  1. Adapted: Suited to the environment where the organism lives.
  2. Air: A mixture of gases including oxygen.
  3. Air Resistance: The air pushing back against you when you move through it.
  4. Artery: Blood vessel carrying food and oxygen to the body cells.
  5. Axis: An imaginary line through the earth from the North Pole to the South Pole.
  6. Balanced diet: A diet that gives the body the right amounts of all types of food.
  7. Balanced forces: Two equal forces acting in opposite directions that cancel each other out.
  8. Battery: More than one cell in a circuit - where the electricity comes from.
  9. Boiling temperature: Temperature at which a liquid changes into a gas.
  10. Canines: Pointed teeth that tear food.
  11. Carbohydrate: Food that gives the body energy.
  12. Carbon dioxide: A gas that’s found in the air.
  13. Carnivore: Animal that only eats other animals.
  14. Carpel: The female part of the flower.
  15. Cell: Forms part of a battery in a circuit.
  16. Cells: Tiny bits that all living things are made from.
  17. Chemical change: A change that cannot be undone.
  18. Chlorophyll: The green stuff in plants that allows it to carry out photosynthesis.
  19. Circuit Diagram: A diagram with symbols that shows all of the components in a circuit and how they are connected.
  20. Classification: Grouping similar organisms together.
  21. Complete: What a circuit must be to allow the flow of electricity.
  22. Component: Something that does a job in a circuit. e.g. bulb, buzzer, or motor.
  23. Condensation: When water vapour cools and turns into a liquid.
  24. Consumer: Something in a food chain that consumes food.
  25. Contract: When a muscle gets shorter.
  26. Decant: Letting solids settle to the bottom and pouring off the liquid very carefully.
  27. Dilute: A solution with a high percentage of water in it.
  28. Dispersal: Spreading seeds far away from the parent plant.
  29. Dissolve: This is when a solid mixes into a liquid and just leaves a new liquid.
  30. Ear drum: The part of the ear that vibrates to allow us to hear sound.
  31. Electrical conductor: Something that lets electricity pass through.
  32. Electrical insulator: Something that won’t let electricity pass through it.
  33. Evaporation: When a liquid warms up and starts to turn into a gas – not the same as boiling.
  34. Excretion: Plants or animals getting rid of waste substances.
  35. Fabric: Made from fibres spun and woven together.
  36. Fertilisation: When sperm joins with egg – or pollen joins with ovule.
  37. Filter: Separate solid bits from a liquid.
  38. Food chain: A diagram which shows the flow of energy from organism to organism.
  39. Food web: A lot of food chains linked up.
  40. Force: A push or pull
  41. Forcemeter: Another name for a Newton meter - Used to measure force.
  42. Freeze: When a liquid gets cold and turns into a solid.
  43. Friction: The force that gives us grip.
  44. Gas: One of the three states a material can be in. Can flow and change volume.
  45. Germ: A non scientific word for microbe.
  46. Germination: When a seed starts to grow.
  47. Gravity: Force that pulls us towards the centre of the earth.
  48. Habitat: Where an organism lives.
  49. Herbivore: An animal that only eats plants.
  50. Impermeable: Something that doesn’t let water through.
  51. Incisors: Teeth that cut food.
  52. Irreversible: A change that can’t be undone.
  53. Irreversible: A change that cannot be made to go the other way.
  54. Key: A set of questions that help you identify an unknown plant, animal or material.
  55. Life cycle: The stages an organism goes through right from fertilisation to death.
  56. Light ray: Light travelling - always in a straight line.
  57. Light source: Something that gives out its own light.
  58. Liquid: A state a material can be in. Can change shape, flow but not change volume.
  59. Magnetic: A material that’s attracted to a magnet.
  60. Material: What something is made of.
  61. Measurement: The dimension, quantity, or capacity determined by measuring.
  62. Melt: When a solid warms up and turns into a liquid.
  63. Micro-organism: A very tiny living thing.
  64. Minerals: Needed by plants to help them grow.
  65. Mirror: Something that reflects light very well.
  66. Mixture: Two or more substances mixed together – that can be separated.
  67. Muscles: These pull on bones to make you move.
  68. Newton: The unit we measure force in.
  69. Newton meter: A spring balance used to measure force.
  70. Nutrition: Plants and animals getting food so that they can grow.
  71. Observation: The act of noting and recording something.
  72. Opaque: Does not let light through.
  73. Orbit: The path an object takes around another object in space.
  74. Organ: Part of the body with a special job to do.
  75. Organism: Living thing, animal or plant.
  76. Ovary: Where eggs are made.
  77. Oxygen: A gas in the air that our bodies need to keep us alive.
  78. Particles: Really really tiny bits that everything is made from.
  79. Periscope: Device with two mirrors that lets you see over the top of things.
  80. Permeable: Allows water to go through it.
  81. Photosynthesis: Making food from carbon dioxide and water – needs chlorophyll and sunlight.
  82. Pitch: How high or low a sound is.
  83. Pollen: The male part of a plant that goes to make a new seed.
  84. Pollination: Getting pollen from a flower to the stigma on another flower.
  85. Pollination: Getting pollen to the stigma.
  86. Predator: Animals that eat other animals.
  87. Prey: An animal killed and eaten by a predator.
  88. Producer: An organism in a food chain that makes its own food.
  89. Property: A quality of a material, like ‘hard’, ‘shiny’, 'conducts electricity' etc.
  90. Protein: A food that builds muscle.
  91. Puberty: When the body changes and develops between 10 and 18 years old.
  92. Pulse: The rhythm of the heart beating.
  93. Pulse rate: How many times the heart beats in a minute.
  94. Pure: Not mixed with anything else.
  95. Reflection: When light bounces off a smooth shiny surface.
  96. Relax: When a muscle gets longer.
  97. Repel: Push apart
  98. Reproduction: Making a new generation.
  99. Respiration: Using oxygen to turn food into energy.
  100. Reversible: A change that can be made to go the other way.
  101. Ribs: The bones in the chest that protect the heart and lungs.
  102. Room temperature: The temperature indoors, usually 20 degrees C
  103. Root: Part of a plant under the ground that takes in water.
  104. Rotate: To go round and round on an axis.
  105. Sepal: Protects the petals when the flower is still in the bud.
  106. Shadow: When light is blocked by something opaque.
  107. Side effect: Something that happens as well as something that was supposed to happen.
  108. Skull: The bones that protect the brain.
  109. Solar system: The Sun, the Earth and the other planets.
  110. Solid: One of the states a material can be in – Keeps its shape and you can hold it.
  111. Solidify: When something turns into a solid.
  112. Solution: A mixture of solid and liquid. You can’t see the solid, but it is still there.
  113. Sound: Made by something vibrating.
  114. Sphere: The shape of the Earth.
  115. Spin: The same as rotate.
  116. Spine: The backbone.
  117. Stamen: The male part of the flower.
  118. Starch: A type of carbohydrate – eg. In pasta.
  119. States: Solid, liquid and gas are the three ***** something can be in.
  120. Stem: Holds a plant upright.
  121. Stigma: At the top of the carpel, where pollen lands.
  122. Style: The bit that holds up the stigma.
  123. Sugar: A type of carbohydrate, e.g. honey.
  124. Sunrise: When the Earth moves round so that an area, previously in darkness, is lit by the Sun.
  125. Sunset: When a part of the Earth, previously lit by the Sun is plunged into darkness due to the Earth's rotation.
  126. Surface area: The measurement of the outer surface of an object.
  127. Switch: Allows you to make a gap in a circuit and close it again to control the flow of electricity.
  128. Symbol: Used in a circuit diagram instead of a picture to represent a component.
  129. Table: Used to record results from an investigation in columns and rows to allow them to be easily read.
  130. Temperature: How hot or cold something is.
  131. Tendon: Joins muscle to bone.
  132. Tension: The amount of pull in the length of a string - How tight it is.
  133. Thermal conductor: Something that lets heat pass through.
  134. Thermal conductor: Something that lets heat pass through it easily.
  135. Thermal insulator: Something that won’t let heat pass through it easily.
  136. Thermometer: Something we use to measure temperature.
  137. Tight: When a string has a lot of tension you would describe it as...
  138. Tuning: Changing the length or the tension of a string to change the pitch of the sound it makes.
  139. Undissolved: Excess solid that hasn’t dissolved.
  140. Upthrust: The force which pushes back up from water, air or a solid surface.
  141. Vacuum: Where there is no air.
  142. Variation: Differences in living things.
  143. Vein: Takes blood back to the heart.
  144. Vertebrate: Animal with a back bone.
  145. Vibration: The way something moves to make it produce a sound.
  146. Virus: A type of microbe.
  147. Water cycle: Water in the air condenses and falls as rain and flows to the sea where the sun evaporates it... again and again...
  148. Water resistance: Water pushing you back as you try to move through it.
  149. Weight: The force pulling down on something due to gravity.