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Everyday Science Marathon

Test your grasp of the science hiding in your kitchen, bathroom and commute. Fifty questions to prove you notice the world.

🔬 Science easy 50 questions ~18 min

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What this quiz asks

Which process makes bread rise?
Water boils at exactly 100°C at sea level.
Which optical effect creates a rainbow?
Select ALL greenhouse gases.
What is the normal internal body temperature of a healthy adult, in °C?
Order these states of matter by increasing energy.
Is sound faster in water than in air?
What pigment gives leaves their green colour?
Which household item is an emulsion?
Microwaves heat food by exciting water molecules.
What causes rust on iron?
Why does ice float on liquid water?
Select ALL renewable energy sources.
Do antibiotics kill viruses?
About how many hours does the Earth take to spin once on its axis?
Order these planets by distance from the Sun.
Which vitamin is synthesised in skin via sunlight?
Glass is a slow-flowing liquid at room temperature.
What gas do plants absorb during photosynthesis?
Select ALL elements that are metals.
Which unit measures electrical resistance?
Is DNA double-stranded in most organisms?
What causes tides on Earth?
Roughly what percentage of an adult human body's weight is water?
Order these colours by increasing wavelength.
Pure ethanol conducts electricity well.
Which organ produces insulin?
Select ALL noble gases.
At what Celsius temperature does water freeze?
Do all mammals lay eggs?
What force keeps planets in orbit?
Lightning is hotter than the Sun’s surface.
How many chambers does the human heart have?
Order these taxonomic ranks from broadest to narrowest.
Which particle has a negative charge?
Select ALL primary colours of light.
Which material is ferromagnetic?
Is the speed of light constant in vacuum?
What causes static cling in laundry?
Diamond and graphite are both pure carbon.
About how many times per minute does a healthy adult's heart beat at rest?
Order these electromagnetic waves by increasing frequency.
Which acid gives lemons their sour taste?
Select ALL components of blood.
Why are soap bubbles spherical?
Do humans share DNA with bananas?
What protects Earth from solar wind?
Hot water freezes faster than cold water always.
How many pairs of chromosomes do humans have?
Order these historical scientific milestones chronologically.