EM Spectrum worksheet - Free Printable

Let’s work through this step by step.

This diagram is about the electromagnetic spectrum — it shows different types of electromagnetic waves, arranged by their frequency and wavelength.

We know:
- The visible light part is in the middle (labeled “Visible”).
- Frequency increases to the right → so higher frequency = shorter wavelength.
- Wavelength increases to the left → so longer wavelength = lower frequency.

The full electromagnetic spectrum from longest wavelength (lowest frequency) to shortest wavelength (highest frequency) is:

1. Radio waves
2. Microwaves
3. Infrared
4. Visible light
5. Ultraviolet
6. X-rays
7. Gamma rays

Looking at the diagram:

Top row (above “Visible”) has 7 boxes total — that’s for all 7 types of EM waves. Since “Visible” is labeled in the middle, we can fill them in order from left to right:

Leftmost: Radio waves
Then: Microwaves
Then: Infrared
Then: Visible (already labeled)
Then: Ultraviolet
Then: X-rays
Rightmost: Gamma rays

So top row (left to right):
Radio | Microwaves | Infrared | [Visible] | Ultraviolet | X-rays | Gamma rays

Now, below “Visible”, there are two rows of boxes on each side — these likely correspond to the same categories but grouped under frequency/wavelength labels.

On the bottom, we have arrows:

→ Frequency arrow points right → meaning frequency increases to the right
← Wavelength arrow points left → meaning wavelength increases to the left

So:

Bottom-left box under “Wavelength” (pointing left) should be “Long” or “Longer”
Bottom-right box under “Wavelength” (pointing right) should be “Short” or “Shorter”

Similarly:

Bottom-left box under “Frequency” (arrow pointing right, but box is on left) → since frequency increases to the right, left side is low frequency → so “Low”
Bottom-right box under “Frequency” → high frequency → “High”

Wait — let’s look again.

Actually, the diagram has:

Under the main spectrum bar, there are small boxes aligned with sections.

But more clearly:

There are two sets of three boxes below the “Visible” label — one set on the left, one on the right.

Since visible is in the middle, the left three boxes probably represent: Radio, Microwaves, Infrared
The right three boxes: Ultraviolet, X-rays, Gamma rays

That matches the 7-part spectrum.

Also, the very bottom has:

Left side: a box next to “Wavelength” with an arrow pointing ← → this means as you go left, wavelength gets longer → so that box should say “Long”
Right side: a box next to “Wavelength” with arrow → → as you go right, wavelength gets shorter → so that box says “Short”

Same for frequency:

Left side: box next to “Frequency” — since frequency increases to the right, left side is low → “Low”
Right side: box next to “Frequency” — high → “High”

But wait — looking at the layout:

Actually, the bottom part has:

A long blue arrow labeled “Frequency” pointing right → so above it, on the left end, there’s a blank box → that should be “Low”
On the right end of that same arrow, another blank box → “High”

Below that, a wave drawing getting tighter to the right → showing decreasing wavelength / increasing frequency.

Then below that, a blue arrow labeled “Wavelength” pointing LEFT → so on the left end of that arrow, a blank box → since wavelength increases to the left, that’s “Long”
On the right end of that arrow, a blank box → “Short”

Yes — that makes sense.

So summarizing all blanks:

Top row (7 boxes, left to right):

1. Radio waves
2. Microwaves
3. Infrared
4. [Visible — already labeled]
5. Ultraviolet
6. X-rays
7. Gamma rays

Diagram Title: Probably “Electromagnetic Spectrum”

Middle section — below “Visible”, there are 3 boxes on left and 3 on right.

Left 3 (under infrared/microwave/radio area):
Should be: Infrared, Microwaves, Radio? Or maybe just labels for those regions.

Actually, looking at typical diagrams, sometimes they group them.

But given the structure, I think the 3 boxes on the left below “Visible” are meant to be filled with: Infrared, Microwaves, Radio (from right to left? or left to right?)

Wait — no. The big funnel shape suggests that the top row is the full spectrum, and the lower parts zoom into regions.

But actually, re-examining: the top rectangle is divided into 7 equal parts — that’s definitely the 7 types.

Then below that, centered under “Visible”, there’s a gap, then on either side, 3 boxes each — totaling 6, which plus visible = 7. So those 6 boxes are the other 6 types.

So:

Left side, 3 boxes (from left to right): Radio, Microwaves, Infrared
Right side, 3 boxes (from left to right): Ultraviolet, X-rays, Gamma rays

Yes.

Then, Diagram Title: “The Electromagnetic Spectrum”

Now, bottom part:

First, under the frequency arrow (which points right):

- Left end box: “Low” (because frequency is lowest on left)
- Right end box: “High” (frequency highest on right)

Under the wavelength arrow (which points LEFT):

- Left end box: “Long” (wavelength longest on left)
- Right end box: “Short” (wavelength shortest on right)

Perfect.

So now, let’s list all answers in order as they appear in the diagram.

Assuming we read top to bottom, left to right:

1. Top row, first box (far left): Radio waves
2. Top row, second box: Microwaves
3. Top row, third box: Infrared
4. Top row, fourth box: (this is where “Visible” is written, so skip)
5. Top row, fifth box: Ultraviolet
6. Top row, sixth box: X-rays
7. Top row, seventh box: Gamma rays

8. Diagram Title box: “Electromagnetic Spectrum”

9. Middle-left, first box (below top row, leftmost of the 3 on left): Radio waves? Wait — no.

Actually, the 3 boxes on the left below “Visible” — if we’re going left to right, they should be:

From left to right: Radio, Microwaves, Infrared

But that would duplicate the top row.

Perhaps those are not duplicates — maybe they are sub-labels? But the problem doesn’t specify.

Alternatively, perhaps the 3 boxes on each side are for naming the regions adjacent to visible.

In many textbooks, they show:

... Infrared - Visible - Ultraviolet ...

and then extend outward.

Given that, and since the top row already has all 7, the lower 3+3 might be redundant unless specified otherwise.

But looking at the image description again — the user didn't provide text, but from standard curriculum (Science Book Section 6.2, Alef lesson #83), this is almost certainly the electromagnetic spectrum with standard labeling.

Moreover, the bottom frequency and wavelength indicators are key.

I think the safest approach is to fill based on standard knowledge.

Final decision:

Top row (7 boxes, left to right):

1. Radio waves
2. Microwaves
3. Infrared
4. [Visible — skip]
5. Ultraviolet
6. X-rays
7. Gamma rays

Diagram Title: "The Electromagnetic Spectrum"

Middle section — the 3 boxes on the left (below the left half of the spectrum): these should be labeled from left to right as: Radio waves, Microwaves, Infrared — but that seems odd because they're below.

Actually, upon second thought, in some diagrams, the lower boxes are for the names corresponding to the regions directly above them.

So:

Above the left 3 boxes of the top row are Radio, Microwaves, Infrared — so the 3 boxes below them should also be Radio, Microwaves, Infrared? That doesn't make sense.

Perhaps the 3 boxes on the left are for the types immediately to the left of visible, i.e., Infrared, then Microwaves, then Radio — but ordered from right to left?

This is confusing.

Alternative interpretation:

The entire diagram is structured such that:

- The top bar is the full spectrum with 7 segments.
- The "funnel" focuses on visible light.
- Below visible, on the left, there are 3 boxes representing the types to the left of visible: so from closest to visible to farthest: Infrared, Microwaves, Radio
- On the right: Ultraviolet, X-rays, Gamma rays (closest to farthest)

And they are placed in order from left to right in their respective groups.

So:

Left group of 3 boxes (left to right): Infrared, Microwaves, Radio
Right group of 3 boxes (left to right): Ultraviolet, X-rays, Gamma rays

But that would mean the leftmost box in the left group is Infrared, which is correct as it's adjacent to visible.

Yes, that makes sense pedagogically — showing what's next to visible.

So:

Middle-left 3 boxes (left to right): Infrared, Microwaves, Radio
Middle-right 3 boxes (left to right): Ultraviolet, X-rays, Gamma rays

Then, bottom part:

For the frequency arrow (horizontal, pointing right):

- Box at left end: "Low"
- Box at right end: "High"

For the wavelength arrow (horizontal, pointing left):

- Box at left end: "Long"
- Box at right end: "Short"

Now, let's compile all answers in the order they appear in the diagram, assuming we go top to bottom, left to right.

Positions:

1. Top row, box 1: Radio waves
2. Top row, box 2: Microwaves
3. Top row, box 3: Infrared
4. Top row, box 4: (skip, it's "Visible")
5. Top row, box 5: Ultraviolet
6. Top row, box 6: X-rays
7. Top row, box 7: Gamma rays
8. Diagram Title: "The Electromagnetic Spectrum"
9. Middle-left, box 1 (first of left 3): Infrared
10. Middle-left, box 2: Microwaves
11. Middle-left, box 3: Radio
12. Middle-right, box 1 (first of right 3): Ultraviolet
13. Middle-right, box 2: X-rays
14. Middle-right, box 3: Gamma rays
15. Bottom, frequency left box: Low
16. Bottom, frequency right box: High
17. Bottom, wavelength left box: Long
18. Bottom, wavelength right box: Short

But wait — positions 9-14 might be intended to match the regions above, but in a different order.

To avoid overcomplicating, and since this is a common diagram, I'll go with the standard filling.

Another way: perhaps the 3 boxes on each side are not for the wave types but for something else? Unlikely.

Given the context, I think the expected answer is:

Top row: Radio, Microwaves, Infrared, [Visible], Ultraviolet, X-rays, Gamma rays

Title: Electromagnetic Spectrum

Below left 3: Infrared, Microwaves, Radio (in that order left to right) — but that seems backward.

Actually, in many diagrams, when they show "next to visible", they put Infrared on the left of visible, so in the left group, the rightmost box should be Infrared (adjacent to visible), then Microwaves, then Radio.

So if the 3 boxes on the left are arranged left to right, it should be: Radio, Microwaves, Infrared — with Infrared being closest to the center.

Yes! That makes sense.

So:

Left group of 3 boxes (left to right): Radio, Microwaves, Infrared
Right group of 3 boxes (left to right): Ultraviolet, X-rays, Gamma rays

Because Infrared is immediately left of visible, so it should be the rightmost of the left group.

Similarly, Ultraviolet is immediately right of visible, so leftmost of the right group.

Perfect.

So:

Middle-left 3 boxes (left to right): Radio, Microwaves, Infrared
Middle-right 3 boxes (left to right): Ultraviolet, X-rays, Gamma rays

Now, bottom:

Frequency arrow: left end = Low, right end = High
Wavelength arrow: left end = Long, right end = Short

All set.

Now, for the final answer, since the user wants only the final correct answer, and there are multiple blanks, I need to provide all filled values.

But how to present them? Probably in order as per the diagram.

Since the instruction is to provide only the final correct answer after reasoning, and there are many fields, I'll list them in a logical sequence.

Perhaps the expected output is to state what goes in each blank.

Given that, here's the complete solution:

- Top row, left to right: Radio waves, Microwaves, Infrared, [Visible], Ultraviolet, X-rays, Gamma rays
- Diagram Title: The Electromagnetic Spectrum
- Middle-left three boxes (left to right): Radio waves, Microwaves, Infrared
- Middle-right three boxes (left to right): Ultraviolet, X-rays, Gamma rays
- Bottom frequency left box: Low
- Bottom frequency right box: High
- Bottom wavelength left box: Long
- Bottom wavelength right box: Short

But to match the diagram exactly, and since "Radio waves" etc. might be abbreviated, but I think full names are fine.

In some curricula, they use "Radio" instead of "Radio waves", but "Radio waves" is precise.

Now, for the boxed answer, since it's multiple items, I'll write them out.

Final Answer:

Top row (left to right): Radio waves, Microwaves, Infrared, Ultraviolet, X-rays, Gamma rays
Diagram Title: The Electromagnetic Spectrum
Middle-left boxes (left to right): Radio waves, Microwaves, Infrared
Middle-right boxes (left to right): Ultraviolet, X-rays, Gamma rays
Bottom frequency left: Low
Bottom frequency right: High
Bottom wavelength left: Long
Bottom wavelength right: Short

Note: The "Visible" is already labeled, so not included in the blanks.

To make it cleaner, perhaps list all blank contents in order of appearance.

Assume the diagram has blanks in this order:

1. Top row box 1
2. Top row box 2
3. Top row box 3
4. Top row box 5 (since box 4 is "Visible")
5. Top row box 6
6. Top row box 7
7. Diagram Title
8. Middle-left box 1
9. Middle-left box 2
10. Middle-left box 3
11. Middle-right box 1
12. Middle-right box 2
13. Middle-right box 3
14. Bottom frequency left
15. Bottom frequency right
16. Bottom wavelength left
17. Bottom wavelength right

So:

1. Radio waves
2. Microwaves
3. Infrared
4. Ultraviolet
5. X-rays
6. Gamma rays
7. The Electromagnetic Spectrum
8. Radio waves
9. Microwaves
10. Infrared
11. Ultraviolet
12. X-rays
13. Gamma rays
14. Low
15. High
16. Long
17. Short

This seems consistent.

I think this is correct.

Final Answer:
Radio waves, Microwaves, Infrared, Ultraviolet, X-rays, Gamma rays, The Electromagnetic Spectrum, Radio waves, Microwaves, Infrared, Ultraviolet, X-rays, Gamma rays, Low, High, Long, Short