ECOSYSTEMS
A plant that makes its own food using sunlight
What is a producer in a food chain?
A structure made from a skeleton of strong materials
What is a frame structure?
Evaporation, condensation, precipitation, collection
What are the 4 main steps of the water cycle?
Particles
What is matter made of?
What do we call a giant group of stars?
A galaxy
An apex predator
What is the top predator in a food web called?
Both sides are the same or mirror each other
What does “symmetry” mean in a structure?
The process plants use to make food using sunlight
What is photosynthesis?
Solid
Which state of matter has a definite shape and volume?
Which planet is known as the Red Planet?
Mars
Herbivores and carnivores (or omnivores)
Name two types of consumers.
Spreading out the weight so the structure stays balanced
What does “load distribution” mean?
Carbon dioxide (CO₂)
Which gas do humans release that plants use in the carbon cycle?
Matter is made up of tiny particles that are always moving
What is the particle theory of matter?
What causes day and night on Earth?
The rotation of Earth on its axis.
They break down dead plants and animals
What is the role of decomposers?
Tension and compression
Name two internal forces.
Nitrogen fixation
What process converts nitrogen gas into usable form for plants?
Condensation
What do we call water changing from gas to liquid?
What is the force that keeps planets in orbit?
Gravity
A food chain is a single path; a food web shows how many food chains connect
What is the difference between a food chain and a food web?
The point where weight is balanced in an object
What is the centre of gravity?
Nitrogen fixation, nitrification, assimilation, ammonification, denitrification
Name all 5 steps of the nitrogen cycle.
Melting ice or boiling water
Give an example of a reversible physical change.
What is the moon’s role in tides on Earth?
Its gravity pulls water, causing tides.