How to write an explainer video script that holds attention

Open with the question or the surprise, not with who you are, then build a chain of short scenes with one idea each, written for the ear and paced at roughly 140 to 160 spoken words per minute (a 3-minute video is about 420 to 480 words). Read it aloud and cut or rewrite anything you stumble on. Kadapt Creator can take a script you paste and carry it through voice and drawing.

The 140 to 160 words per minute figure is a common rule of thumb for narration, not a measured result from Kadapt. Creator pricing and target clarification: 8 November 2026.

An explainer script has one job: get a viewer from “I don’t get this” to “oh, I see” before they leave. Most scripts lose people for a few predictable reasons, and each has a fix.

1. Start with the hook

Your first sentence decides whether the rest gets heard. Open with the question the viewer already has (“Why is the sky blue?”), a surprising point you can back up, or the problem they recognise. Skip the greeting and the “in this video we will cover”.

2. Use a simple shape

A reliable structure for a short explainer:

Hook: the question or problem.
Answer in one line: give the short version early, so the viewer knows where this is going.
Steps or reasons: the explanation, in order, each one clear before the next begins.
Recap and close: the one thing to remember, and what to do next if anything.

3. One idea per scene

Treat each scene as a single sentence-or-three that makes one point. If a scene needs “and also”, split it. Because visuals follow the narration, a scene with one idea is easier to illustrate and easier to follow.

4. Write for the ear

Short sentences. One clause where you can.
Everyday words. Say “use”, not “utilise”.
Numbers as you would say them: “about forty percent”, not “~40%”.
Repeat the key term rather than swapping synonyms; listeners cannot scan back.
Put the important word at the end of the sentence, where the voice lands.

5. Pace by word count

Narration at a natural pace runs around 140 to 160 words per minute. That is a rule of thumb, so treat it as a planning range:

Intended spoken duration	Approximate words
1 minute	140 to 160
3 minutes	420 to 480
5 minutes	700 to 800

Write to the range, then time yourself. Leave room for pauses at scene changes. These are writing examples, not Creator’s selectable targets: its planner offers 3, 5, 8, 12 or 15 minutes, defaulting to 8. Finished duration can differ from the target.

Use the free script checker to count your words and estimate speaking time at your chosen pace. Your text stays in your browser; copy or download it before opening Creator.

Prefer planning on paper? Download the free two-page Creator script worksheet for your hook, spoken words, visual notes and source checks. Preview and print the worksheet.

6. Do the read-aloud test

Read the whole script out loud at a normal pace, ideally standing up. Mark every place you stumble, run out of breath, or want to say it differently, and fix those. Check the timing against your target. A script that sounds natural in your mouth sounds natural in a generated voice too.

7. Check the facts before you build

A smooth script can still be wrong. Source your figures first; the fact-checking checklist covers it.

Handing it to Creator

If you have a finished script, Kadapt Creator lets you paste it instead of starting from a topic. You review it, approve the voice, and the visuals arrive in roughly one-minute pieces. Its maximum video quote depends on the selected target and planned beats: planning is 18 credits, narration is rounded up from 0.3 credits per beat, and drawing is 4 credits per started minute. The drawing reserve uses the selected target even with a shorter own script; you need the full quoted balance to start. Actual frame-rounded drawing settlement is capped at the reserve, with any difference returned. Optional research is charged separately before the video quote. See the cost guide and pricing, and decide on length before you write, since it sets your word count. For a worked flow from an existing article, see blog post to explainer video.

Common questions

How many words is a 1-minute explainer script?

As a rule of thumb, about 140 to 160 words at a natural speaking pace, so roughly 150. Slower, more deliberate narration needs fewer. Your read-aloud timing is more reliable than any formula.

What makes a good hook?

A concrete question, a surprising fact you can source, or a problem the viewer recognises, stated in the first sentence or two. Avoid openings that introduce yourself or the topic in general terms.

Should I write for reading or for listening?

Listening. Use short sentences, everyday words, and spell numbers the way you would say them. A sentence that needs re-reading on the page will lose a listener who cannot go back.

Can Creator write the script for me?

Yes, from a topic or question: it researches with sources, outlines, writes and fact-checks, and you review and approve. Or you can paste your own. Research is charged separately before the video quote at 6 credits per started target minute; with your own script there is no research charge.