Living Things
What do plants need to grow?
Name 3.
Water, sun, carbon dioxide, nutrients
What is the name of our planet?
Earth
What force pulls objects towards Earth?
Gravity
Name a solid, liquid and gas.
Example: ice, water and water vapour.
What tool measures temperature?
thermometer
What is photosynthesis
The process plants use to make food using sunlight, water and carbon dioxide
What causes day and night?
earth rotating on its axis
Name one type of energy.
Light, heat, sound, electrical, chemical or movement energy.
What happens when ice melts?
It changes from a solid to a liquid
What is a prediction?
A statement about what you think will happen in an investigation.
What is an adaptation?
A feature or behaviour that helps a living thing survive in its environment.
What is the water cycle?
How many main processes are there?
What can a push or pull do to an object?
It can change the object's movement or direction
What is a reversible change?
A change that can be changed back, such as melting and freezing.
What is a fair test?
A test where one variable is changed while other important variables are kept the same.
Why are food chains important?
They show how energy and nutrients move between living things.
Why does the Moon appear to change shape
We see different amounts of its sunlight side as it orbits Earth
What is friction?
A force that resists movement when two surfaces rub together
What is an irreversible change?
A change that cannot easily be changed back, such as cooking an egg or burning paper.
Why should scientists repeat an experiment?
To check results are reliable and not caused by chance or an error.
How could removing one animal from a food chain affect other organisms?
It can change population sizes and upset the balance of the food chain
Why do we have seasons?
Earth's axis is tilted as Earth orbits the Sun, changing the sunlight different parts receive
What does it mean when energy is transferred?
Energy moves from one object or system to another, such as electrical energy becoming light and heat.
How can you tell a chemical reaction may have occurred?
Signs can include colour change, gas/bubbles, temperature change, light, or a new substance forming.
A plant isn't growing well. How could you investigate why?
Change one variable, such as water or sunlight, keep other conditions the same, repeat the test and measure growth.