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Key words

The science, maths and programming words used in the labs, explained simply. In a lab, tap an underlined word to see what it means.

22 words

acid अम्ल
A substance that tastes sour, like lemon juice or vinegar. It turns blue litmus red.
ChemistryEnvironment
carbon dioxide कार्बन डाइअक्साइड
A gas we breathe out. Plants take it in to make their food.
ChemistryBiologyEnvironment
condensation सघनन
When a gas cools and turns back into a liquid, like drops on a cold glass.
ChemistryEnvironmentPhysics
dissolve घुल्नु
To mix into a liquid so completely that you can no longer see the pieces.
ChemistryEnvironment
energy ऊर्जा
What is needed to make things move, heat up, light up or grow.
PhysicsTechnologyEnvironmentBiology
evaporation वाष्पीकरण
When a liquid slowly turns into a gas (vapour), like puddles drying in the sun.
ChemistryEnvironmentPhysics
evidence प्रमाण
What you saw or measured that shows whether an idea is right.
PhysicsChemistryBiologyEnvironmentTechnology
fair test निष्पक्ष परीक्षण
A test where you change only one thing, so you know what caused the result.
PhysicsChemistryBiologyEnvironmentTechnology
filtration छान्ने विधि
Separating solid bits from a liquid by pouring it through filter paper or cloth.
ChemistryEnvironment
food chain खाद्य शृङ्खला
Who eats whom: grass is eaten by a goat, and the goat by a tiger.
BiologyEnvironment
habitat बासस्थान
The natural home of a plant or animal, like a pond or a forest.
BiologyEnvironment
indicator सूचक
A substance that changes colour to show whether something is an acid or a base.
ChemistryEnvironment
microorganism सूक्ष्मजीव
A living thing too small to see without a microscope, like bacteria.
BiologyEnvironment
mixture मिश्रण
Two or more substances mixed together, which can be separated again.
ChemistryEnvironment
neutral तटस्थ
Neither an acid nor a base, like pure water.
ChemistryEnvironment
oxygen अक्सिजन
A gas in the air that living things need to breathe and that fire needs to burn.
ChemistryBiologyEnvironment
photosynthesis प्रकाश संश्लेषण
How green plants make their own food from light, water and carbon dioxide.
BiologyEnvironment
prediction अनुमान
What you think will happen before you try it. It is fine if it turns out wrong.
PhysicsChemistryBiologyEnvironmentTechnology
sediment थिग्रिएको
Heavy bits that sink and settle at the bottom of a liquid.
ChemistryEnvironment
solution घोल
A mixture where one substance has dissolved completely in a liquid, like salt water.
ChemistryEnvironment
temperature तापक्रम
How hot or cold something is, measured in degrees Celsius (°C).
ChemistryPhysicsEnvironment
variable चर
Something that can change in an experiment. Change one, measure another, and keep the rest the same.
PhysicsChemistryBiologyEnvironmentTechnology