Educational worksheet illustrating the parts of an earthquake with a cross-section diagram and label matching activity.

Let’s solve this step by step.

We are looking at a cross-section of an earthquake. The diagram shows the ground with a tree, a house, and layers underground. There are red circles showing waves spreading out from a point deep underground — that’s where the earthquake starts.

There are 5 labels to place:
- earth’s crust
- epicentre
- hypocentre
- fault line
- tectonic plate

Let’s think about what each term means:

1. Hypocentre – This is the actual point *inside* the Earth where the earthquake begins. It’s the source. In the diagram, it’s the bright orange/red spot deep underground where the waves start. So the label pointing to that spot should be “hypocentre”.

2. Epicentre – This is the point on the *surface* directly above the hypocentre. If you draw a straight line up from the hypocentre to the ground, that’s the epicentre. In the diagram, it’s the center of the red circles on the surface — right under the tree. So the label pointing to that surface spot is “epicentre”.

3. Fault line – This is the crack or break in the rock where the earthquake happens. It’s usually shown as a line along which the rocks move. In the diagram, there’s a dark line going diagonally through the underground layers — that’s the fault line. So the arrow pointing to that line should be labeled “fault line”.

4. Earth’s crust – This is the outermost layer of the Earth — the solid ground we walk on. In the diagram, it’s the top brown/green layer (with grass, tree, and house). So the label pointing to that top layer is “earth’s crust”.

5. Tectonic plate – These are huge slabs of rock that make up the Earth’s outer shell. They move slowly and can cause earthquakes when they bump or slide past each other. In the diagram, the large block of rock beneath the crust (the grayish layer) represents part of a tectonic plate. So the label pointing to that big underground block is “tectonic plate”.

Now let’s match them to the boxes:

Left side (top to bottom):
- Top box → points to the surface layer → earth’s crust
- Middle box → points to the surface center (under tree) → epicentre
- Bottom box → points to the deep origin point → hypocentre

Right side (top to bottom):
- Top box → points to the diagonal crack → fault line
- Bottom box → points to the large underground block → tectonic plate

Final Answer:
Left side (top to bottom): earth’s crust, epicentre, hypocentre
Right side (top to bottom): fault line, tectonic plate