Planets and Space
How many planets are there in our Solar System?
Eight
What part of the skeleton protects the brain?
Skull
What are the main parts of a plant? List at least three
Roots, stem, leaves, flowers, and seeds
What are the three states of matter?
Solid, liquid, and gas
Why do we need light?
So we can see things around us.
What is the closest planet to the Sun?
Mercury
Which organ controls all the activities of the body?
Brain
What is the main function of the roots?
To anchor the plant and absorb water and nutrients from the soil
Which state of matter has particles that are very close together and only vibrate in place?
Solid
Where does most of the Earth’s light and heat come from?
From the Sun
Name one terrestrial planet in our Solar System.
Mercury, Venus, Earth, and Mars
Which organ helps us breathe in oxygen and remove carbon dioxide?
Lungs
What is the main function of leaves?
To make food for the plant through photosynthesis
Steam from a boiling kettle spreads out to fill the room. What state of matter is it?
Gas
What can small devices use if they do not have mains electricity?
Batteries
What is the movement of the Earth spinning on its axis called?
Rotation
Which organ breaks down food so the body can absorb nutrients?
Stomach
What is the main function of flowers?
To help the plant reproduce by producing seeds
Sugar in a bowl keeps its shape and does not flow. Is it a solid, liquid, or gas?
Solid
What do we use to power appliances?
Electricity or batteries
What is the movement of the Earth around the Sun called?
Revolution (or orbit)
What part of the skeleton protects the heart and lungs?
Rib cage
Name two examples of plant habitats.
Forests, deserts, riversides, or grasslands (any two)
What is the process called when a solid turns into a liquid?
Melting
Name at least 2 main parts of a simple circuit.
Battery (or cell), wires, switch, and bulb (or any electrical device).
How long does it take the Earth to complete one revolution around the Sun?
365 days (1 year)
How do we call animals with backbones?
Vertebrates
What characteristics make something living?
It can grow, reproduce, respond to its environment, and needs food and water.
What is the process called when a liquid turns into a gas?
Evaporation
What is the function of the battery in a circuit?
The battery provides the energy needed to move electricity through the circuit.