stem for kids Archives – a stemful mind

String art is such a great way to practice fine motor skills and sneak in some math skills. It is also a lovely project that involves creativity and can keep your kids entertained creating something beautiful. Using rainbow colored yarn/string gives it that extra touch of color! But unfortunately we did not have this at home which gave us the perfect chance to expand the project and practice some DIY and color mixing! Replacing materials with stuff you have at home is a great practice for resourcefulness and modeling this for your kids is a great way to teach them to work with the resources they have. So in this post I will explain how we prepared some rainbow colored string and will then describe the string art project itself.

Rainbow String Preparation

We didn’t have any rainbow colored yarn or string at home, but we did have food coloring so I thought we could try and color some string with it. The results were not exactly the same as the store-bought one but it added a new layer to the project and it was also fun to do!

Materials

Food coloring
Plastic cups or containers
Water
String or yarn

Coloring String

Prepare the cups with water and food coloring. We poured about 2-3 fingers of water into the cups and squirted some food coloring into it until we got a color we liked. Perfect time to practice color mixing! We ended up with seven cups: blue, purple, green, red, orange, yellow and black. Next we added the string to the cups, we kept the string connected and just used each color once. You could probably go back and forth, feel free to experiment! Then leave the string to soak up the colorful water. In our case we left it a couple of days, our string took a very long time to soak up the water, but we kept checking it once in a while. This is how the preparation and what the end result looked like:

Once the string was out and drying we used the colored water to play a bit, stretching this project out even more! We combined colors and poured them into different containers which is quite entertaining for toddlers. Once the rainbow string is dry you can start the string art project!

String Rainbow Art Project

Materials

Some sort of base: wood, corkboard…
Nails, toothpicks (make one side blunt if they are both pointy!), or straight pins
Rainbow string or yarn
Hammer if you use nails and wood

String Art Project

**Younger children should be supervised around pins, toothpicks, and nails, which have sharp points and are choking hazards.**

The first step in this project is to create a grid. Grab your base and place the nails/toothpicks/pins to make a grid. If you are using a corkboard you might want to double it up if it is too thin. We actually used an old corkboard that we didn’t want to cut up and just placed it over open boxes to give the toothpicks space to go through. Find what works for you.

For the grid, depending on your child’s age you could let them measure and mark the grid points themselves or mark them beforehand. Have your kids place one nail/toothpick/pin on each grid point. Use a smaller grid for younger kids and increase the size for older kids. My daughter enjoyed placing the toothpicks more than playing with the string!

Once the grid is set up, allow some free play. Explain to your kids how to weave the string and give them some time to experiment weaving the string and see what happens. You might need to help toddlers and guide the string with them a bit. It is the perfect time to talk about shapes that appear as they play with the string. This is definitely enough for toddlers. They practice their motor skills and you can talk about the shapes they create as they experiment.

Sneak In Some Math

For older kids, you can try to sneak in some geometry. Start off by asking your kids to create as many different shapes as possible. Then you can challenge their mind a bit! Here are some suggestions:

On a 3×3 grid, how many (same size) triangles can you fit into a square? What about a 4×4 grid?
On a 4×4 grid, how many (same size) rectangles can you fit into a square?

Divide a shape up into smaller shapes (check out the photo below) and then ask your kid how many squares/triangles/rectangles they see. Ask them to do the same for you.

Playing around with shapes like this is great to give kids a feeling for geometry and even fractions!

Time For Creativity

Once your kids have played around with the string and explored the world of shapes, you can ask them to create their own design if they are still interested. To do so, draw the grid on paper first and ask them to draw something (a heart, a star…). To replicate the design with string use nails/toothpicks/pins to create the outline of your design. Then weave the string through them. Experiment with different designs and create some beautiful string art!

Hope you can spend some quality time together as a family discovering string art and exploring shapes!

More Fun Activities and Games:

Make sure to Bookmark the Stay At Home STEM post which will be updated with all our fun STEM activities that are perfect for doing at home.

Happy STEM learning!

Oh the scientific method! Such a structured way to exploration but so helpful when taking on a big scientific project. Scientists and researchers use this method when trying to answer questions about our world. Following the scientific method allows researchers to have a guide that helps them organize all the information. Because let’s face it, nowadays the information at our fingertips is so huge! With this STEM experiment, you can help your children get an understanding of using the scientific method in a fun and educational way.

**Check out our Simple Science Project For Kids: Float or Sink for a simple play-based version of the Float or Sink experiment! Perfect for younger kids or if you are looking for a less structured activity.**

Having a tool like the scientific method is very useful. And introducing it to your kids will help them with problem-solving and analytical skills. It will give them a way to structure their thoughts when problems arise. It also shows them to take their time to think about the problem and analyze different perspectives before choosing the best solutions.

Some Background Information

The scientific method is used by scientists to structure their research and make the process of discovering something more efficient and effective.

The steps to the scientific method are the following:

Question
Research
Hypothesis
Experiment
Analyze
Conclusion

As you can see, there are many steps before starting any experiment. By researching and writing down your hypothesis first you will be able to set up the perfect experiment to answer the question. You will also have some background knowledge that will help you when doing the experiment.

STEM Experiment: Let’s find out the Answer to…

The Question

So here is a question for your children:

Why do you think things float or sink?

They probably have some ideas and answers for this. Encourage them to write down their original thoughts so that you can compare them once you are done with the STEM experiment.

Here you can find a free printable to fill out as the experiment goes on.

Time to Research

Research is usually done by reading and reading and more reading of scientific papers, journals and relevant material. We are not going to do this 🙂 We will move the research along by asking our kids some questions. So let’s get your kids brain to work a bit:

Think of objects that float/don’t float, what are they made of? How big are they?
Do you float in water? Can you make yourself float more or less? (By filling your lungs with air and holding your breath you will float more)
Show them a list of materials, do you think materials matter?
Show them different sized objects or images of objects, do you think size matters?
What other things do you think affect the ability of an object to float or sink?

Write down a Hypothesis you want to test

Now that you have brainstormed about why an object floats or not you can make a hypothesis or more than one! But first, what is a hypothesis?

A hypothesis is an idea or explanation for something that needs to be proved
A hypothesis tries to answer the question of your research (in this case, why do things float or sink?)
A hypothesis is proved through experiments and testing

Some ways you can express your hypothesis:

Things made out of _______ float/sink
Things that are ___________ float/sink
Floating depends on ______________

Time to test those Hypotheses

Once you’ve made a hypothesis, ask your child how you could test it. Here are a few examples of experiments you could do with them but feel free to come up with your own!

First step in any experiment is to gather the materials you are going to test and any tools you might need. For any experiment you are going to need:

Objects to test (different sizes, materials and shape)
Water, in a bucket, in the sink, in the bathtub, in a small outdoor pool
Paper and pencil to write down your findings

Ways you can experiment and make your children think about the hypotheses:

Categorize the objects you have collected and test their floating ability by pairs:

○ same material, different size

○ same material, different shape

○ same size, different weight

Get plastic containers and fill them with different materials and test the floating capabilities, for example:

○ empty container

○ container filled with cotton (what happens when cotton gets wet?)

○ container filled with sand

○ container filled with water

○ container filled with sticks

○ container filled with coins

○ container filled with stones

Do the same with a glass container

There is a list of materials and object ideas in the guide for inspiration. Let them experiment and play 🙂 there is no rush to finish the activity! Don’t forget to write down your findings so you can analyze them later!

Let’s analyze those Resultats

Now it’s time to look back on your STEM experiment and the results to see if your hypothesis was correct. You can ask the hypothesis back in question form and see if the results support it! Other questions you can ask to discover why certain objects float:

Does wood/plastic/metal/stone float?
Does shape or weight matter?
What containers could float? Which ones would sink? What was inside of them?

Conclusion Time

So did you find out why things float? Did you test your hypothesis? Did you get some fun ideas about other things you could test with this method? Did more questions pop up as you experimented? Welcome to the STEM world! The questions never end 🙂 and this is oh so important for your children to experience. How to answer questions using the scientific method is a must in the STEM world. If you want a more detailed answer to why things float you can download the printable guide, there is an explanation at the end. But I’m sure that you will have a pretty good idea about the answer from all that scientific experimenting you will do 😉

So to finish up the activity you can talk about what you discovered and if there are more things you would like to research together. If you have any topics you would like me to cover just comment below and I’d be happy to write a post about it in the future. I hope you enjoyed this activity and had fun experimenting and discovering how our world works.

For more information about STEM and how to transform your STEM activities at home, check out these posts:

Check out other fun STEM activities to sneak in some STEM learning:

Happy STEM learning!