# 8 Activities For Teaching Middle Schoolers About Waves & Its Concepts

Waves are all around us, from the gentle ripples on a pond to the crashing waves of the ocean. They are a fundamental aspect of nature and can be found in many different forms, including mechanical waves like sound and water waves, and electromagnetic waves like light. Understanding the properties and behavior of waves can help us understand a wide range of natural phenomena, from the way we see and hear to the way the ocean tides work.

Through the use of different materials and techniques to create waves and observe how they behave, one can explore the properties of waves such as wavelength, frequency, and amplitude. Additionally, students can also learn about the applications of waves in different fields such as communication, medicine, and technology. As the activities are a great way to help students develop critical thinking and problem-solving skills and to deepen their understanding of the fundamental concepts in physics, below are some interesting activities on waves that students must try during middle school.

## Exploring the wonders of waves: Engaging and fun activities for middle school

Have you ever indulged in a physics activity or game before? If you have, and loved it, here are 8 engaging waves activities for middle school children that will enhance their foundational understanding of different types of waves.

### 1. DIY Wave in a Bottle

Wave in a bottle is a simple wave activity for middle schoolers. Students can easily conduct the wave in a bottle activity, as the materials are simple and easy to obtain. To do the activity, students need to fill a clear plastic bottle with water. Then, place a small object such as a marble inside the bottle.

Next up, shake the bottle to create waves and observe how the object moves. During this stage of the activity, the teacher can encourage the kids to discuss and note the observations. At this time, the teacher can indulge in asking questions like the size of the wave and the movement of the marble.

Additionally, repeat the activity by altering the amount of water in the bottle or by using different objects to observe the effect on the waves. After they have observed how the object moves when they shake the bottle to create waves, students will understand how waves transfer energy and the concept of wave amplitude.

### 2. Wave Interference Lab

The simplest way to simulate waves is by creating an artificial pool in the classroom itself. Middle school students can observe the phenomenon of wave interference with the help of simple materials like a shallow tray and a rope. To do the activity, create an artificial pool using a shallow tray or pool of water. Next, use a slinky or rope to create waves in the water. Kids can now observe how the waves interact with each other and note patterns such as constructive and destructive interference

Through this activity, students can then observe how waves interfere with each other and create patterns such as constructive and destructive interference. This activity can help students understand the concept of wave superposition and also enhances students’ understanding of the phenomenon of wave interference.

### 3. Sound Wave Experiment

Sound waves can be another important area for middle schoolers to explore. Hence in this experiment, students can explore the properties of sound waves by conducting an experiment with a tuning fork, a ruler, and a stopwatch.

For this activity, the kids and the educators need to obtain a tuning fork and strike it with a rubber mallet to produce sound. Next, measure the distance between the two prongs of the tuning fork using a ruler. Record this as the wavelength. Furthermore, measure the time it takes for the tuning fork to complete one vibration using a stopwatch. Record this as the frequency.

Later, kids can also strike the tuning fork again and hold it near different materials, such as wood, metal, and glass and observe how the sound travels through the materials. Additionally, this activity can help students understand the relationship between frequency and wavelength and how sound waves travel through different materials.

Additionally, students will gain a deeper understanding of the relationship between frequency and wavelength and how they relate to the pitch and volume of sound. This activity also helps in the development of measurement skills through the use of a ruler and stopwatch.

### 4. Waves Unleashed: Speed and Distance Exploration

The activity of wave speed and distance can be done through the help of a day out near an artificially created pool or a waterbody. Here, students measure the speed of waves by timing how long it takes for a wave to travel a certain distance. To understand the same, the teacher would have to take students to an artificially created pool or a body of water with clearly visible waves.

Next, the teachers can have students select a point on the shore as a starting point and another point a known distance away as the endpoint. In the next step, the students time how long it takes for a wave to travel from the starting point to the endpoint using a stopwatch or timer. Now, the students will repeat the measurement several times to get an average wave speed. Off and on, the kids can change the distance between the starting and end points and repeat the measurement to see how the distance affects wave speed.

To make it more educational, teachers can have the students measure the water depth and observe how it affects wave speed. Students can now observe the different wave frequencies that affect wave speed. The activity will help students understand the concept of wave speed and how it can be calculated.

### 5. Wave Magic: Investigating Water Surface Tension

Using a vibration-producing device or manual force, students can create water surface tension and waves. Students can then explore the properties of surface tension by creating waves on the surface of a container of water. If the physics lab of the school has a vibration-producing device, then that can be used. Otherwise, the teachers can fill in a container with water and manually shake it.

Create waves on the surface of the water and observe the size and shape of the waves. Next, add a drop of dish soap to the water and keep repeating the shaking motion. Students can now observe how the surface tension of the water changes and how it affects the size and shape of the waves. All of these steps can be repeated with different amounts of dish soap and record the observations. Students can also use surface tension-altering agents such as salt or oil and record the observations.

Students can observe how the size and shape of the waves change as the surface tension of the water is altered. This activity can help students understand the concept of surface tension and how it affects waves. Additionally, this activity can help students to understand how different substances like salt, oil, and soap affect the surface tension of water and how they can change the behavior of waves.

### 6. Raging Waves: Simulating a Tsunami

A fun activity to replicate tsunami, tsunami simulation will catch the fancy of all students. In this activity, students can create a tsunami simulation using a model of a coastline and a large container of water. To do the activity, create a model of a coastline using materials such as clay, sand, or foam. Next, fill a large container with water.

The teachers and students can now place the model coastline into the container and position it so that the water is at a low level at the far end of the container and gradually increases in depth as it reaches the coastline. Now, use a manual or mechanical method to create a wave in the water that simulates a tsunami. Observe how the wave approaches the coastline and how it interacts with the coastline as it makes landfall. Record the observations of how the tsunami’s size, speed, and shape change as it hits the coast.

To make the activity more insightful, Repeat the simulation with different initial wave heights and different variations of coastlines to observe the differences. Through this activity, they can observe how the tsunami’s size, speed, and shape change as it hits the coast. This activity can help students understand the destructive power of tsunamis and how they are formed.

### 7. Wave Wizardry: Experimenting with Reflection and Refraction of Waves

Unlike other wave activities involving water that study the properties of proper, this activity focuses on the other object to study the characteristics of waves. Students simply have to observe the phenomena of wave reflection and refraction by creating waves in a shallow pool or tray of water using a slinky or rope.

To do the activity, fill a shallow pool or tray with water. Now, place a slinky or rope at one end of the pool or tray. Hold the end of the slinky or rope and move it back and forth to create waves in the water. Students can now observe how the waves behave when they hit the edges of the pool or tray and when they hit a barrier placed in the water (such as a piece of cardboard or plastic).

Note how the waves change direction and how the height and frequency of the waves are affected. For added insights and knowledge, teachers and students can repeat the activity with different barriers and at different depths to further observe the effects of reflection and refraction.

### 8. Sound Experiment with a DIY String Telephone

A string telephone is a simple device that uses the vibrations of sound waves to transmit sound from one end to the other. To make a string, join two paper cups with a piece of string and a needle or a thumbtack. Once this is ready, the activity can be started by punching a small hole in the bottom of each paper cup using a needle or a thumbtack. Next, thread one end of the string through the hole in one cup and tie a knot to secure it in place.

Furthermore, students can now hold one cup to one ear and speak in the other. The sound vibrations travel through the string and are heard in the cup held to the ear. Students can experiment with different string materials, different string lengths, and different types of cups to see how these factors affect the transmission of sound.

As a sound wave activity, a string telephone can be a great way to teach students about the properties of sound waves and how they can be used to transmit information. By building their own string telephones, students can observe firsthand how sound waves travel through a medium, such as a string, and how the vibrations of these waves can be used to transmit sound from one end of the string to the other.

## Waves: Beyond the surface – Unique examples of waves in everyday life

While the activities can be useful for kids who have learning disabilities like dyscalculia, on the other hand, there are many examples of waves in everyday life, and they can be classified into different types such as mechanical waves and electromagnetic waves. Here are a few examples of each type of wave:

### 1. Mechanical Waves

• Sound waves: We experience sound waves every day when we hear music, people talking, or cars passing by. Sound waves are mechanical waves that require a medium to travel through, such as air or water.
• Water waves: Water waves can be at the beach, in rivers, and in lakes. Water waves are also mechanical waves, and they are caused by the movement of the water’s surface.
• Seismic waves: Earthquakes generate seismic waves that can travel through the Earth’s crust. These waves can cause damage to buildings and structures.

### 2.Electromagnetic Waves

• Light waves: Light waves can be seen every day when we look at the sun, light bulbs, or other sources of light. Light waves are electromagnetic waves that travel at the speed of light and do not require a medium to travel through.
• Radio waves: Radio waves are used every day to listen to music, news, and other broadcasts on the radio. Radio waves are also electromagnetic waves and are used for a variety of other purposes such as in wireless communication and navigation.
• Microwaves: Microwaves used for heating food and for wireless communication are also an example of electromagnetic waves. Microwaves are a type of electromagnetic wave with a shorter wavelength compared to radio waves.
• X-rays: X-rays are used in medicine to create images of internal body structures. X-rays are also a type of electromagnetic wave but with a much shorter wavelength than visible light.

## Conclusion

In conclusion, wave activities are a fantastic way to introduce middle school students to the fascinating world of waves and their properties. Being an example of project-based learning for middle schoolers, these activities allow students to explore and experiment with different types of waves, from the gentle ripples on a lake to the powerful seismic waves of an earthquake. They can also learn about the various ways waves are used in everyday life, from listening to music on the radio to getting an X-ray at the doctor’s office.

Through wave activities, students can develop critical thinking and problem-solving skills as they design and conduct their own experiments and analyze data. Hence, these activities can act as great critical thinking games too. As they discover the beauty and complexity of wave behavior, they will no doubt be inspired to continue their journey of scientific exploration and understanding. So, let’s raise the waves of excitement and knowledge in the classroom, and see where the tide of learning takes them.