Light
What is the name of the material that lets no light pass through?
Opaque
What do we call a complete path that electricity can flow through?
An electric circuit
What do we call living things that can make their own food using sunlight?
Producers or plants (through photosynthesis)
What does it mean when an animal is adapted to its environment?
It has features or behaviours that help it survive in its surroundings
Name the four main stages of the human life cycle.
Baby, child, teenager, adult (some include elderly as a fifth
What happens to light when it hits a mirror?
It reflects or bounces back
What is the source of energy in an electric circuit that we often use in school experiments?
A battery (or cell)
Name two vertebrates and two invertebrates.
Vertebrates: dog, bird; Invertebrates: spider, worm
Why do camels have long eyelashes and small ears?
Eyelashes keep sand out;
What physical changes happen when a child becomes a teenager?
Puberty changes: growth spurts, voice changes, body hair, etc.
Name the process where light changes direction when it passes from air to water.
Refraction
Name two conductors and two insulators.
Conductors: metal, copper; Insulators: plastic, rubber
What is a reptile, and how is it different from a mammal?
Reptiles have scales and lay eggs; mammals have fur/hair and feed milk to young
What is evolution, in simple terms?
A slow change in living things over a long time
At what stage do humans grow the fastest?
As a baby
Why do we see objects? Explain how light helps us see.
Light reflects off objects and into our eyes, allowing us to see them
What happens in a circuit if there is a break in the wire?
The circuit is open, and electricity stops flowing
What tool or method do scientists use to group and identify living things?
Classification keys
How does a polar bear’s fur help it survive in cold climates?
It provides insulation and camouflage in the snow
What are some changes that happen during old age?
Hair greys, wrinkles, slower movement, reduced strength
Explain how a shadow is formed
A shadow is formed when an object blocks light. Its shape changes depending on the angle of the light source
Describe how a switch works and how it controls a circuit.
A switch opens or closes the circuit; when closed, electricity flows; when open, it stops
What group do animals belong to if they are cold-blooded, lay eggs, and live in water? How are they different from reptiles?
Fish — they have gills and live in water, unlike reptiles that breathe air and live mostly on land.
Describe how fossils give us clues about animals that lived a long time ago.
Fossils show shapes of bones or imprints, helping us learn about ancient life and changes
What is a baby called before it is born? (double points for correct spelling)
Foetus