Welcome, Junior Water Filtration Specialist!
Today you learned all about water filtration — how water gets tested, how filters work, and what it takes to be a real water specialist. You now know more about water science than most people! Show your parents everything you learned.
What You Learned Today
Here are the big ideas from your water filtration training.
Water Has Hidden Problems
Just Because You Can't See It Doesn't Mean It's Not ThereWater that looks clean can still have things hiding in it that you can't see — like metals, minerals, and tiny chemicals. That's why we test it! The picture shows what water can look like before and after it goes through a filter.
Numbers Are Clues
pH, Iron, Hardness — Each One Is a Different ClueWhen someone has yucky water, they don't send us the water — they send us a report full of numbers. Most people just see numbers, but a water filtration specialist sees clues. We read those numbers like a detective reads clues at a crime scene!
Chemistry Matters
Each Layer Inside a Filter Catches Different StuffSome filters and water are best friends, and some don't get along at all! If water is too acidic (too "spicy"), some filter materials won't work. If there's too much calcium, you get white crusty stuff called scale. We have to figure out if the water and the filter are going to be BFFs before we build anything.
Order Matters
Big Stuff First, Then Medium, Then TinyFilters have to go in the right order to work. If you put them in the wrong order, the whole system can fail! It's like building a LEGO set — you can't put the roof on before the walls, right? Water filtration specialists have to think ahead and plan every step.
Skills + Science Combined
Thinking, Building, Testing, and Talking to People — All in One JobBeing a water filtration specialist isn't just about building things. You have to think, test, read data, and talk to people about what you found. It takes both science AND creativity every single day!
Let's Put Your Water Knowledge to the Test!
Let's see how much you remember! 7 questions, no pressure.
Water Facts That'll Blow Your Mind
Share these at dinner tonight and wow your whole family.
Of Earth's Water We Can Drink
Most water on Earth is salty ocean water or frozen in ice. Less than 1% is water we can actually drink!
Of Your Body Is Water
You're basically a walking water bottle! About 60% of your body is water, and your brain is about 73% water.
Of Water Used Every Day
Every person uses enough water to fill about 2 bathtubs every single day — for drinking, showers, cooking, and cleaning!
Forms of Water
Water can be a solid (ice), a liquid (water), and a gas (steam). It's the only thing on Earth that can naturally be all three!
Can Fill a Small Pool
One dripping faucet wastes enough water in a year to fill a small swimming pool. Just from tiny little drips!
Takes a TON of Water
Making just ONE hamburger uses enough water to fill about 13 bathtubs! That counts the water to grow the food, raise the cow, and cook it all.
How Big Can Water Filters Get?
These aren't just little filters that fit on your sink. Some of the systems Crystal Quest builds are HUGE. They clean thousands of gallons of water every single day — that's more water than your whole school could drink in weeks!
Home Water Detective Mission
Your first job as a Junior Specialist! Do these with your family.
Tap each one when you finish it to find out what your results mean.
The Clarity Test
Fill a clear glass with water from your kitchen sink. Hold it up to a light. Is it totally clear? A little cloudy? Can you see tiny things floating in it?
What does it mean?
- Totally clear? Good start! But remember — some things hiding in water are way too tiny to see, even in water that looks perfect.
- A little cloudy or milky? This could be tiny air bubbles (totally normal!) or it could be fine dirt and sand particles. A sediment filter catches these.
- Tiny floating things? Those are particles in your water. A good filter catches these before they get to your glass.
The Smell Test
Smell the water in your glass. Does it smell like nothing? Like a swimming pool? Like metal? Like rotten eggs? What did you find?
What does it mean?
- No smell at all? That's usually good news!
- Smells like a swimming pool? That's chlorine! Your city puts it in the water to kill germs. It's safe to drink, but it can dry out your skin and hair. A carbon filter takes it right out.
- Smells like metal? You might have iron or other metals in your water. This is really common if you have a well.
- Smells like rotten eggs? That's sulfur. It won't hurt you, but it really stinks! A special filter can get rid of it.
The Scale Hunt
Look at your faucets, showerhead, and inside your kettle. Do you see any white, crusty buildup? That's called scale!
What does it mean?
- Found white crusty stuff? You have hard water! That buildup comes from minerals like calcium and magnesium. It won't hurt you to drink, but over time it can clog pipes and mess up dishwashers, washing machines, and water heaters. A water softener can fix this!
- No buildup at all? Your water is probably already soft, or someone in your home might already have a water softener doing its job.
The Filter Check
Ask your parents: do you have any water filters in the house? Check under the sink, on the counter, on the fridge, or in the basement. What did you find?
What does it mean?
- Found a filter? Great! Ask your parents when it was last changed. Most filters need a new cartridge every few months to keep working well. An old, worn-out filter is almost as bad as having no filter at all!
- No filter anywhere? That means the water coming out of your tap hasn't been filtered at all. Whatever is in the pipes goes right into your glass. It might be worth looking into one!
Where Does Your Water Come From?
Ask your parents: does your home get water from the city or from a well? This is the very first question a water filtration specialist always asks!
What does it mean?
- City water? The city cleans your water before it gets to you, but they add chlorine to do it. And if the pipes between the city and your house are old, things like lead and other metals can get into the water on the way to your faucet.
- Well water? Your water comes straight from under the ground! Well water can have all sorts of things in it — iron, sulfur, bacteria, and hard water minerals. That's why well water usually needs its own special filter setup.
Mission Complete!
Amazing work, detective! You just did exactly what a real water filtration specialist does when they check out someone's water. You looked, you smelled, you searched, and you asked the right questions. Now you AND your parents know more about your home's water!
Draw Your Dream Water Filter!
Make up the wildest, most creative water filter you can think of. Maybe it's a robot that cleans water, a giant tower with fish swimming through it, or a spaceship-powered super filter. There are no wrong answers — and you might win a prize!
Draw It
Use paper, crayons, markers, colored pencils, or whatever you have. Make it as wild and colorful as you want!
Take a Photo
Have a parent take a clear photo of your finished drawing.
Submit It
Have a parent click the button below and fill out the short form to send us your drawing!
Win a Crystal Quest Water Pitcher for Your Family!
Our favorite drawing wins a Crystal Quest water pitcher so your whole family can enjoy cleaner, filtered water at home. We'll pick a winner and reach out by email!
For Parents: What's In Your Water?
Everything your child learned today is real. The same things that show up on a water report — chlorine, lead, iron, hard water minerals — could be in the water your family drinks, cooks with, and bathes in every day. The good news? There's a filter for that.
Drinking Water Filters
From countertop filters to under-sink and reverse osmosis systems — cleaner water straight from the tap.
Shower & Bath Filters
Chlorine doesn't just affect taste — it affects your skin and hair too. Our shower filters remove chlorine, heavy metals, and more.
Whole House Systems
Filter every drop of water in your home — from every faucet, shower, and appliance — with a single system.






