37 Water Science Experiments: Fun & Easy
We’ve curated a diverse selection of water related science experiments suitable for all ages, covering topics such as density, surface tension, water purification, and much more.
These hands-on, educational activities will not only deepen your understanding of water’s remarkable properties but also ignite a passion for scientific inquiry.
So, grab your lab coat and let’s dive into the fascinating world of water-based science experiments!
Water Science Experiments
1. walking water science experiment.
This experiment is a simple yet fascinating science experiment that involves observing the capillary action of water. Children can learn a lot from this experiment about the characteristics of water and the capillary action phenomenon. It is also a great approach to promote scientific curiosity and enthusiasm.
Learn more: Walking Water Science Experiment
2. Water Filtration Experiment
A water filtering experiment explains how to purify contaminated water using economical supplies. The experiment’s goal is to educate people about the procedure of water filtration, which is crucial in clearing water of impurities and contaminants so that it is safe to drink.
Learn more: Water Filtration Experiment
3. Water Cycle in a Bag
The water cycle in a bag experiment became to be an enjoyable and useful instructional exercise that helps students understand this idea. Participants in the experiment can observe the many water cycle processes by building a model of the water cycle within a Ziplock bag.
4. Cloud in a Jar
The rain cloud in a jar experiment is a popular instructional project that explains the water cycle and precipitation creation. This experiment is best done as a water experiment since it includes monitoring and understanding how water changes state from a gas (water vapor) to a liquid (rain) and back to a gas.
Learn more: Cloud in a Jar
5. The Rising Water
The rising water using a candle experiment is a wonderful way to teach both adults and children the fundamentals of physics while also giving them an exciting look at the properties of gases and how they interact with liquids.
6. Leak Proof Bag Science Experiment
In the experiment, a plastic bag will be filled with water, and after that, pencils will be inserted through the bag without causing it to leak.
The experiments explain how the plastic bag’s polymer chains stretch and form a barrier that keeps water from dripping through the holes the pencils have produced.
Learn more: Leak Proof Bag Science Experiment
7. Keep Paper Dry Under Water Science Experiment
The experiment is an enjoyable way for demonstrating air pressure and surface tension for both adults and children. It’s an entertaining and engaging technique to increase scientific curiosity and learn about scientific fundamentals.
Learn more: Keep Paper Dry Under Water Science Experiment
8. Frozen Water Science Experiment
The Frozen Water Science Experiment is a fun and engaging project that teaches about the qualities of water and how it behaves when frozen.
You can gain a better knowledge of the science behind the freezing process and investigate how different variables can affect the outcome by carrying out this experiment.
9. Make Ice Stalagmites
10. Bending of Light
A fascinating scientific activity that explores visual principles and how light behaves in different surfaces is the “bending of light” water experiment. This experiment has applications in physics, engineering, and technology in addition to being a fun and interesting method to learn about the characteristics of light.
11. Salt on a Stick
This experiment is an excellent way to catch interest, engage in practical learning, and gain a deeper understanding of the characteristics of water and how they relate to other substances. So the “Salt on Stick” water experiment is definitely worth trying if you’re looking for a fun and educational activity to try!
Learn More: Water Cycle Experiment Salt and Stick
12. Separating Mixture by Evaporation
This method has practical applications in fields like water processing and is employed in a wide range of scientific disciplines, from chemistry to environmental science.
You will better understand the principles determining the behavior of mixtures and the scientific procedures used to separate them by performing this experiment at home.
13. Dancing Spaghetti
Have you ever heard of the dancing spaghetti experiment? It’s a fascinating science experiment that combines simple materials to create a mesmerizing visual display.
The dancing spaghetti experiment is not only entertaining, but it also helps you understand the scientific concepts of chemical reactions, gas production, and acidity levels.
14. Magic Color Changing Potion
The magic color-changing potion experiment with water, vinegar, and baking soda must be tried since it’s an easy home-based scientific experiment that’s entertaining and educational.
This experiment is an excellent way to teach kids about chemical reactions and the characteristics of acids and bases while providing them an interesting and satisfying activity.
15. Traveling Water Experiment
In this experiment, you will use simple objects like straws or strings to make a path for water to pass between two or more containers.
Learn more: Rookie Parenting
16. Dry Erase and Water “Floating Ink” Experiment
The dry-erase and water “floating ink” experiment offers an interesting look at the characteristics of liquids and the laws of buoyancy while also being a great method to educate kids and adults to the fundamentals of science.
Learn more: Dry Erase and Water Floating Ink Experiment
17. Underwater Candle
In this experiment, we will investigate a connection between fire and water and learn about the remarkable factors of an underwater candle.
18. Static Electricity and Water
19. Tornado in a Glass
This captivating experiment will demonstrate how the forces of air and water can combine to create a miniature vortex, resembling a tornado.
Learn more: Tornado in a Glass
20. Make Underwater Magic Sand
Be ready to build a captivating underwater world with the magic sand experiment. This experiment will examine the fascinating characteristics of hydrophobic sand, sometimes referred to as magic sand.
21. Candy Science Experiment
Get ready to taste the rainbow and learn about the science behind it with the Skittles and water experiment! In this fun and colorful experiment, we will explore the concept of solubility and observe how it affects the diffusion of color.
Density Experiments
Density experiments are a useful and instructive approach to learn about the characteristics of matter and the fundamentals of science, and they can serve as a starting point for further exploration into the fascinating world of science.
Density experiments may be carried out with simple materials that can be found in most homes.
This experiment can be a great hands-on learning experience for kids and science lovers of all ages.
22. Super Cool Lava Lamp Experiment
The awesome lava lamp experiment is an entertaining and educational activity that illustrates the concepts of density and chemical reactions. With the help of common household items, this experiment involves making a handmade lava lamp.
Learn more: Lava Lamp Science Experiment
23. Denser Than you Think
Welcome to the fascinating world of density science! The amount of matter in a particular space or volume is known as density, and it is a fundamental concept in science that can be seen everywhere around us.
Understanding density can help us figure out why some objects float while others sink in water, or why certain compounds do not mix.
24. Egg Salt and Water
Learn about the characteristics of water, including its density and buoyancy, and how the addition of salt affects these characteristics through performing this experiment.
25. Hot Water and Cold-Water Density
In this experiment, hot and cold water are put into a container to see how they react to one other’s temperatures and how they interact.
Sound and Water Experiments
Have you ever wondered how sound travels through different mediums? Take a look at these interesting sound and water experiments and learn how sounds and water can affect each other.
26. Home Made Water Xylophone
You can do this simple scientific experiment at home using a few inexpensive ingredients to create a handmade water xylophone.
The experiment demonstrates the science of sound and vibration and demonstrates how changing water concentrations can result in a range of tones and pitches.
Learn more: Home Made Water Xylophone
27. Create Water Forms Using Sound!
A remarkable experiment that exhibits the ability of sound waves to influence and impact the physical world around us is the creation of water formations using sound.
In this experiment, sound waves are used to generate patterns and shapes, resulting in amazing, intricate designs that are fascinating to observe.
28. Sound Makes Water Come Alive
These experiments consist of using sound waves to create water vibrations, which can result in a variety of dynamic and captivating phenomena.
29. Water Whistle
The water whistle experiment includes blowing air through a straw that is submerged in water to produce a whistle.
This experiment is an excellent way to learn about the characteristics of sound waves and how water can affect them.
Water Surface Tension Experiments
You can observe the effects of surface tension on the behavior of liquids by conducting a surface tension experiment.
By trying these experiments, you can gain a better understanding of the properties of liquids and their behavior and how surface tension affects their behavior.
30. Floating Paperclip
In this experiment, you will put a paper clip on the top of the water and observe it float because of the water’s surface tension.
31. Water Glass Surface Tension
Have you ever noticed how, on some surfaces, water drops may form perfect spheres? The surface tension, which is a characteristic of water and the cohesive force that holds a liquid’s molecules together at its surface, is to blame for this.
32. Camphor Powered Boat
The camphor-powered boat experiment is a fun and fascinating way to explore the principles of chemistry, physics, and fluid mechanics. In this experiment, a miniature boat is used to travel across the water’s surface using camphor tablets.
33. Pepper and Soap Experiment
The pepper in a cloud experiment is a simple and interesting activity that explains the concept of surface tension. This experiment includes adding pepper to a bowl of water and then pouring soap to the mixture, causing the pepper to move away from the soap.
Learn more: Pepper and Soap Experiment
Boiling Water Experiments
Experiments with boiling water are an engaging and informative way to learn about physics, chemistry, and water’s characteristics.
These investigations, which include examining how water behaves when it changes temperature and pressure, can shed light on a variety of scientific phenomena.
It’s important to take the proper safety measures when performing experiments with hot water. Boiling water can produce steam and hot particles that are dangerous to inhale in and can result in severe burns if it comes into contact with skin.
34. Make It Rain
This experiment can be accomplished using basic supplies that can be found in most homes, make it an excellent opportunity for hands-on learning for both kids and science lovers.
Learn more: Make it Rain
35. Fire Water Balloons
Learning about the fundamentals of thermodynamics, the behavior of gases, and the effects of heat on objects are all made possible by this experiment.
36. Boil Water with Ice
The Boiling Water with Ice experiment is an engaging and beneficial approach to learn about temperature and the behavior of water. It can also serve as an introduction for further discovery into the wonderful world of science.
37. Boil Water in a Paper Cup
The “boil water in a cup” experiment is an easier but powerful approach to illustrate the idea of heat transmission by conduction. This experiment is often used in science classes to teach students about thermal conductivity and the physics of heat transfer.
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40 Simple Water Science Experiments for Kids
April 16, 2018 by Selena Robinson Leave a Comment
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Warmer weather means lots of water play and, for us, that means plenty of simple water science experiments to try with the kids!
Since we’ve been homeschooling, I’ve learned that science doesn’t have to be a complicated subject to teach.
Many scientific concepts sound complicated (and really are amazingly intricate), but showing kids how they work doesn’t have to be complex.
Turns out that you can use a few household supplies and demonstrate how scientific principles work in a kid-friendly way!
And that’s why I’ve rounded up 40 easy water science experiments that would be great to share with kids – either indoors or outdoors!
Don’t miss our list of science experiments that you can do in just 15 minutes too!
1. Simple Light In Water Refraction Experiment – Look! We’re Learning!
2. Milk Jug Water Wheel Experiment – J Daniel 4’s Mom
3. Float Vs Sink Experiment – Teach Me Mommy
4. Leak-Proof Bag Science Experiment – Fun Learning for Kids
5. How to Make a Lava Lamp – Coffee Cups and Crayons
6. Measuring Water Beads – Blue Bear Wood
7. Water Balloon Parachute – Fantastic Fun and Learning
8. Food Coloring Fluid Mechanics Experiment – Mama Smiles
9. Measuring Buoyancy Experiment – KC Edventures
10. Color Mixing Experiment – Science Sparks
11. Tide Pool Science Experiment – Buggy and Buddy
12. Floating Peep Boats – Sixth Bloom
13. Traveling Water Experiment – The Wise Owl Factory
14. Simple Water Displacement Experiment – Life with Moore Babies
15. Ripple Water Experiment – J Daniel 4’s Mom
16. Why Does Water Rise STEM Experiment – STEAM Powered Family
17. Make a Rain Cloud In a Jar – Coffee Cups and Crayons
18. Water Xylophone Sound Experiment – Little Bins for Little Hands
19. Growing Mint in Water – Sloely
20. Sticky Ice Experiment – Capri Plus 3
See more of these awesome simple water science experiments on page 2!
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Upside Down Glass of Water Science Experiment
Have you ever tried turning a glass of water upside down without spilling it? It seems impossible! Both kids and adults will be amazed by this experiment that appears to defy gravity.
With just a few simple household items, you can try this simple and fun science experiment where kids can get see the effects of air pressure in action. Printable instructions, a demonstration video, and an easy to understand explanation of how it works are included below.
Helpful Tip: Be sure to try this experiment over a sink or large container lest you accidentally make a BIG wet mess!
JUMP TO SECTION: Instructions | Video Tutorial | How it Works
Supplies Needed
- Drinking Glass
- Thick Sheet of Paper that is long and wide enough to cover the entire mouth of the glass. (We used a piece of poster board)
- Large Container or Sink
Upside Down Glass of Water Science Lab Kit – Only $5
Use our easy Upside Down Glass of Water Science Lab Kit to grab your students’ attention without the stress of planning!
It’s everything you need to make science easy for teachers and fun for students — using inexpensive materials you probably already have in your storage closet!
Upsidedown Glass of Water Science Experiment Instructions
Step 1 – Begin by filling the empty glass with water. Ensure that the water is completely to the top of the glass. If there is any space between the water and the paper, the experiment won’t work.
Step 2 – Gently place the paper on the top of the glass.
Step 3 – Move the glass over the container or sink.
Step 4 – Gently place your hand on the paper, then flip the glass over. What do you think will happen if you remove your hand? Write down your hypothesis (prediction) and then follow the steps below.
Step 5 – Remove your hand from the bottom and watch in amazement as the paper stays covering the glass and the water doesn’t spill out. Do you know why this happens? Find out the answer in the how does this experiment work section below.
Upside Down Water Glass Video
How Does the Experiment Work?
The reason this experiment works is because of air pressure! Air pressure is the weight of a column of air pushing down on an area. While we cannot feel it, the air is heavy! The weight of the air pushing down on all objects on Earth is the same as the combined weight of three cars! The reason we don’t feel this extreme weight is that the molecules in air push evenly in all directions – up, down, sideways, diagonally. In this experiment, the air pushing up from underneath the paper is strong enough to overcome the weight of the water pushing down on the paper. Because of the air pressure pushing up on the card, the card will stay on the glass and the water will not spill out.
Do note that while the paper will stay for a while, the paper will become saturated and it will fall eventually.
More Science Fun
If you enjoyed this experiment, then you’ll definitely enough these other cool science experiments that also highlight the power of air.
- Balloon Rocket – Make a balloon that flies across the room like a rocket
- Keep Towel Dry Under Water – Use simple science to keep the paper towel dry after submerging it in water
- Put a Straw through a Raw Potato – Yes, you can easily stick a drinking straw through a hard raw potato
I hope you enjoyed the experiment. Here are some printable instructions:
Upside down Glass of Water Experiment
Instructions.
- Begin by filling the empty glass with water. Helpful Tip: Ensure that the water is completely to the top of the glass. If there is any space between the water and the paper, the experiment won’t work.
- Gently place the paper on the top of the glass.
- Move the glass over the container or sink.
- Gently place your hand on the paper, then flip the glass over.
- Remove your hand from the bottom and watch in amazement as the paper stays covering the glass and the water doesn’t spill out.
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February 18, 2023 at 4:11 pm
Air Pressure.
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Apr 21, 2024 · The rain cloud in a jar experiment is a popular instructional project that explains the water cycle and precipitation creation. This experiment is best done as a water experiment since it includes monitoring and understanding how water changes state from a gas (water vapor) to a liquid (rain) and back to a gas. Learn more: Cloud in a Jar. 5.
Explore how water plays a vital role in plants, discover the special properties that make water unique and do fun chemical reactions with water! Dive in and discover the fascinating world of water! Browse Water Experiments. Check out all the different water projects with complete instructions and videos.
Apr 16, 2018 · Simple Water Displacement Experiment – Life with Moore Babies. 15. Ripple Water Experiment – J Daniel 4’s Mom. 16. Why Does Water Rise STEM Experiment – STEAM Powered Family. 17. Make a Rain Cloud In a Jar – Coffee Cups and Crayons. 18. Water Xylophone Sound Experiment – Little Bins for Little Hands. 19. Growing Mint in Water ...
May 7, 2024 · Use this free water cycle printables as part of a water cycle study, study of life cycles in science, summer learning, or extra practice. This set includes a water cycle explanantion for kids from preschool, pre-k, kindergarten, and elementary age students in first grade, 2nd grade, and 3rd graders too.
Begin by filling the empty glass with water. Helpful Tip: Ensure that the water is completely to the top of the glass. If there is any space between the water and the paper, the experiment won’t work. Gently place the paper on the top of the glass. Move the glass over the container or sink.
The FDA allows the sale of groundwater that is sucked up by hydraulic pumps that are installed close to a spring as “spring water.” In the year 2014, this was about six billion gallons of water, a number that increases each year. That is a lot of water! You might wonder how water is stored under the ground,…