Living Things
Which bone protects the heart and lungs?
The ribcage
What is the main source of energy for life on Earth?
The Sun
Give one example of a solid and one example of a liquid at room temperature.
(any suitable answer)
Name an adaptation that fish have which allows them to breathe underwater.
Gills
Name 3 electrical components.
Any three: Lamp, lamp holder, cell, cell holder, wire, switch, etc.
What happens to a muscle when it contracts?
It becomes shorter and thicker
What energy do plants use to make food?
Light energy from the Sun
How can you change a liquid back into a solid?
Cool or freeze it
What do we call the place where an animal or plant lives?
A habitat
What is the difference between a conductor and an insulator?
A conductor allows electricity to pass through it while an insulator does not.
Explain how the biceps and triceps work together to lift your arm.
Biceps contract and triceps relax
What energy changes happen when you switch on a fan?
Electrical energy → kinetic energy (movement) + sound energy
Which state of matter takes the shape of its container?
Liquid
What are the four main layers of the Earth called?
Crust, mantle, outer core, inner core.
How can we make a lamp in a circuit shine brighter?
Add more cells / remove other lamps
Name 3 invertebrates.
(any suitable answer)
Why do we say energy cannot be created or destroyed?
It only changes form or is transferred
How do particles in a solid move?
They vibrate in place
Why do more volcanoes form near the Pacific Ring of Fire?
Because that’s where tectonic plates meet / there are more breaks in the Earth's crust
Describe the surface of a material that is reflective.
Smooth / shiny
What joins muscles to bones?
Tendons
Name 2 examples of renewable sources of energy.
Solar, wind, hydro, geothermal, biomass
Does solidifying involve adding heat or removing heat?
Removing heat
What do we call the equipment that scientists use to measure and record vibrations in the Earth's crust during an earthquake?
Seismograph.
Why do planets move in orbits around the Sun instead of straight lines?
The Sun’s gravity pulls them inward as they move.