The Web has billions of pages. Somewhere out there is the answer to almost any question you can ask, and also a lot of rubbish, adverts and rumours. Today you will learn to find the right page fast, and to tell a trustworthy source from a fake one. That is a skill you will use for every project in school and beyond.
Imagine you need a blue padlock in Makola Market. You could walk past thousands of stalls for hours. Or you could ask the market queen, who knows exactly which stalls sell padlocks, and which sellers are honest.
A search engine is the market queen of the Web. Long before you ask, its robot programs visit billions of pages and write down what is on each one in a giant catalogue called an index. When you type your keywords, it looks them up in the index and lists the best matches first.
The program on your computer or phone (Chrome, Edge, Firefox, Safari). It is the window you look through to visit any web page. You met it in Session 11.
A website you open inside the browser: Google, Bing or DuckDuckGo. Typing words (not an address) in the address bar also sends them to a search engine: Chrome usually uses Google, Edge uses Bing.
Search engines do not need chatty words like "please" or "tell me". They hunt for keywords: the 2–6 most important words, the ones you expect to see on the perfect page.
| ❌ Weak Search (too vague or full of filler) | ✅ Smart Keyword Search (specific and direct) |
|---|---|
trees in ghana (millions of random results) | mangrove trees coastal protection Ghana |
how can our school get some clean drinking water? | ceramic pot water filter schools Ghana |
plastic | plastic sachet recycling projects Accra |
Operators are special symbols or words that give the search engine exact orders. They work in Google and Bing. DuckDuckGo understands quotes, minus and site:, but not OR.
| Operator | What it orders | Example |
|---|---|---|
| "quotes" | Find these words together, in this exact order. | "Kakum National Park" canopy walkway |
| -minus | Leave out pages with this word. No space after the minus! | Mole National Park elephants -hotel |
| site: | Only show pages from this website or kind of website. No space after the colon. | scholarships site:edu.ghschool calendar site:gov.gh |
| OR | Either word will do. Type OR in CAPITAL letters. | kenkey OR banku recipe |
Your turn: Write a smart search, using at least one operator, for each task.
| Pages about the Akosombo Dam from Ghanaian government websites only. | |
| The exact phrase "Volta Lake" and fishing, but no pages about hotels. | |
| Recipes for either waakye or jollof. |
Read before you click: skip results marked Sponsored or Ad unless you really want to buy something. Read the address and the snippet, then choose. Some search engines now show an AI-written summary at the top: it can be wrong, so check it like any other source (Session 40).
| Tab | What it finds | Try it |
|---|---|---|
| Images | Pictures that match your words. Click one to see the page it comes from. Pictures belong to their owners (more in Session 27). | kente weaving Bonwire |
| Maps | Places, distances and directions on a map, with a satellite view. | Kejetia Market Kumasi |
| News | Recent news stories, with the date and the news organisation. Use Tools to show only the past week. | Ghana Meteorological Agency rain |
A reverse image search searches with a picture instead of words. It shows where else that picture appears on the Web, so you can find out whether a "today" photo is really years old, or from another country.
Chrome: right-click the picture and choose Search with Google Lens (the wording may differ). Any browser: go to images.google.com, click the camera icon, then upload the picture or paste its link. Bing Images has a camera icon too.
Pages showing the same picture (look for "Exact matches"). Which is the oldest? What did the first page say the picture shows? If it was online years ago, it is not "today's" news. Edited and AI-made fakes (deepfakes) come in Session 40.
| ✅ Good places to start (Ghana) | 🚩 Warning signs of a rumour site |
|---|---|
Government ministries and agencies (.gov.gh): e.g. the Ghana Education Service ges.gov.gh, Ghana Statistical Service statsghana.gov.gh, Ghana Health Service ghs.gov.gh. | No author's name and no date. |
Universities (.edu.gh): e.g. ug.edu.gh, knust.edu.gh, ucc.edu.gh. | A shocking headline in CAPITALS, "SHARE BEFORE THEY DELETE THIS!!!" |
| Established national news: e.g. the Ghana News Agency, the Daily Graphic, GBC. They name their reporters and correct mistakes. | A strange address such as ghana-breaking-news24.example.net, lots of pop-ups and adverts. |
| Encyclopaedias like Wikipedia: a good start, but check the references at the bottom. | No other trustworthy site reports the same story. |
Anyone in the world can make a web page and write false information. Before a fact goes into your project, pass it through the shield:
To cite a source means to write down where a fact came from, so your teacher (or anyone) can check it. Write three things: the title of the page, the website, and the date it was published or updated (or "no date"), plus the day you visited.
Your turn: Cite a page you visited today (or the Kakum page from Session 11).
Your team draws a topic card: Lake Volta, Mole National Park, Kente weaving, Cape Coast Castle or cocoa farming in Ghana. Find 5 true facts, each with its source. Points: 1 for every fact with a full citation that passes the shield, 1 for every different operator you use, and 2 extra for the first team to finish. First, sharpen your skills in the Search Detective 3D lab on your session page.
"Lake Volta" fishing and site:gov.gh). Read the address and snippet of each result before you click. Skip "Sponsored" results.Our topic:
| # | Fact | Search I typed | Source: title · website · date | Agree? |
|---|---|---|---|---|
| 1 | ||||
| 2 | ||||
| 3 | ||||
| 4 | ||||
| 5 |
Photo detective: What did you find out about the viral photo?
For each task, tick the search that will work best.
| Task | A | B | C |
|---|---|---|---|
| 1. Facts about the Akosombo Dam from government websites. | tell me about the dam |
Akosombo Dam site:gov.gh |
Akosombo -dam |
| 2. Pages with the exact name Tetteh Quarshie. | "Tetteh Quarshie" |
Tetteh OR Quarshie |
Tetteh -Quarshie |
| 3. A WhatsApp photo says "Flood in Tamale today". Is it really new? | Share it, just in case | Search flood |
Reverse image search it |
| 4. The first result says "Sponsored". What is it? | The most correct page | An advert someone paid for | A government page |
Question 1: Kofi says, "Google and Chrome are the same thing." Explain the difference to him.
Question 2: You find a surprising fact on a website with no author and no date. What should you do before you put it in your project?
Tick the column that reflects your confidence at the end of Session 12:
| Searching & Research Competency | With Help | Almost Alone | All By Myself! |
|---|---|---|---|
| 1. I can explain the difference between a browser and a search engine. | |||
| 2. I can search with keywords and the operators "quotes", minus, site: and OR. | |||
| 3. I can use the Images, Maps and News tabs, spot adverts and do a reverse image search. | |||
| 4. I can check a source with the 4-Way Shield and cite it (title, website, date). |
BIH JHS Tech Club · a Bozoma Innovation Hub programme · Your answers are saved only on this computer.