Best Science Projects for Class 7 Students: Easy Topics

Science Projects for Class 7: Practical knowledge is more effective than theoretical knowledge, especially for Science students. Thus, educators need to teach science concepts via projects, experiments, and models. However, teachers often hustle to explore project ideas, owing to the limited availability of materials. Also, teachers have to look after student safety while experimenting. Therefore, we have included cost-effective and safe Science Projects for Class 7 students in this blog. Explore and experiment!!

Also Read: Science Projects for Class 8 & Working Models

1. Solar Oven Experiment

Objective: With rising temperatures and deteriorating air quality, it is essential to encourage students to opt for renewable sources of energy. In this attempt to impart knowledge about alternate sources of energy such as solar power, teachers can suggest students create solar ovens. 

Process: To construct a Solar oven, you can follow the steps mentioned below:

• You can use a cardboard box and line it with reflective material like aluminium foil.
• Thereafter, create a reflective lid and cover it with a transparent sheet.
• Once you reach this step, place your cooking vessel inside to harness sunlight for an eco-friendly cooking experience.

Also Read: What is the Full Form of PV?

2. Water Filter Project

Objective: In addition, Class 7 Science teachers can assign water filter projects to their students to enable them to realise the importance of water conservation. Also, with this project, students will know about the increasing scarcity of water, owing to global warming and water pollution. 

Process: While performing the water filter experiment, one of the easy Science projects for Class 7, you can follow these steps:

• You need sand, gravel, and activated charcoal to create a simple water filter. After gathering the materials, layer them in a plastic bottle.
• Now, pour dirty water through the layers and observe as impurities are filtered out.
• Thereafter, you can explain the filtration process in your presentation by showcasing a cost-effective solution for clean water.

Also Read: Essay on Save Water: In 100 Words, 200 Words, 300 Words

3. Electricity Generation from Fruits Experiment

Objective: When the world is dealing with a scarcity of electricity and witnessing the rapid depletion of fossil fuels, it has become essential to seek alternate sources of energy. If you are a school teacher, then it is your responsibility to teach students about the grave crisis and motivate them to use non-exhaustive sources of energy. In this attempt, you can ask students to generate electricity using fruits as a source. 

Process: Ask students to follow theses steps to generate electricity from fruits:

• For this, students can connect fruits such as lemons or potatoes to form a basic electrochemical cell.
• Now, measure the voltage produced as the fruits’ acids facilitate electron flow, showcasing the potential for harnessing small-scale, eco-friendly power sources.

Also Read: Save Electricity Essay: Format & Samples

4. Simple Circuit Experiment

Objective: With this experiment, you must understand the basics of electricity by observing the illumination of light bulbs when circuits are complete. This hands-on approach helps grasp concepts like conductivity and resistance. Thus, you learn about the components of electrical circuits engagingly and practically.

Process: To perform one of the most easy yet significant Science projects for Class 7- Simple Circuit Experiment, you need to follow these steps:

• You need to collect a battery (1.5V or 9V), a small light bulb (e.g., an LED or flashlight bulb), insulated wires, and a switch (optional).
• Now, attach one end of a wire to the positive terminal of the battery. Secure it tightly using tape or clips.
• Thereafter, attach the other end of the wire to one terminal of the light bulb. Ensure a solid connection to allow the current to flow.
• Now, use another wire to connect the second terminal of the light bulb to the negative terminal of the battery. The bulb should light up, indicating the circuit is complete and electricity is flowing. To control the circuit, insert a switch between one of the wires and the bulb. Test the switch to turn the bulb on and off.
• To experiment further, try using different materials (e.g., a coin, paperclip) to replace the wires and test conductivity. Observe changes when adding more bulbs or batteries in series or parallel.

In addition, as Class 7 students you can explore NCERT Class 7 Science Chapter 10 Electric Current and its Effect through simple circuit experiments.

Also Read: NCERT Solutions and Notes Class 6 Science Chapter 9: Electricity and Circuits

5. Plant Growth in Different Soils Experiment

Objective: Class 7 teachers can conduct experiments on growing plants in different types of soil to investigate the impact of diverse soil types on plant growth. The findings will enable students to learn about how soil characteristics influence plant development. In addition, students will learn about agricultural practices and understand the relationship between plants and their surrounding environment.

Process: Here are the steps to perform plant growth in different soils experiment:

• To begin with, you need to gather identical plant seeds, pots, and different types of soil (e.g., sandy, clay, loamy, or garden soil). You must label the pots based on the soil type for easy identification.
• Therafter, you should fill each pot with a specific soil type. You must plant the same number of seeds at the same depth in each pot to ensure consistency.
• You need to add equal amounts of water to each pot and place them in a location with similar sunlight exposure.
• Over a few weeks, observe and record the plant growth in each soil type. Measure plant height, leaf count, and overall health periodically.
• You should compare the growth patterns across the different soil types and conclude which soil supports the healthiest plant growth.

Furthermore, while covering NCERT Class 7 Science Chapter 1 Nutrition in Plants teachers can help students learn about different soil types through an experiment.

Also Read: Different Types of Plants: By Life Cycle, Seeds & Size

6. Volcano Eruption Model Creation

Objective: To demonstrate a chemical reaction between baking soda and vinegar that mimics a volcanic eruption, teaching the basics of chemical reactions and geological processes.

Process: Here is a step-by-step process to perform one of the best Science Projects for Class 7:

• You can create a volcano structure using clay or papier-mâché.
• Now, place a small container at the centre to hold the “lava” mixture.
• Thereafter, you need to mix baking soda, a few drops of food colouring, and dish soap in the container.
• Lastly, you should pour vinegar into the container to trigger the eruption.

7. Homemade Thermometer Construction

Objective: To understand the principle of thermal expansion and how temperature affects liquid movement in a closed system.

Process: Here are the steps to create a homemade thermometer that you can follow:

• Firstly, you must fill a bottle with a mixture of water and rubbing alcohol. Add food colouring for visibility.
• After that, you should insert a clear straw through a hole in the bottle cap, ensuring it doesn’t touch the liquid.
• Thereafter, you should seal the hole with clay or glue.
• At the end, you have to place the thermometer in warm and cool areas to observe the liquid rising or falling.

8. Lung Capacity Experiment

Objective: To measure lung capacity and understand its relationship to respiratory health and physical fitness.

Process: To perform a lung capacity experiment, one of the most important Science projects for Class 7, you can follow the below-mentioned steps:

• You can start by inflating a balloon as much as possible in one breath.
• In the second step, you need to tie the balloon’s neck temporarily.
• Now, you have to measure its circumference or volume using a measuring tape.
• Thereafter, you can compare results with classmates to analyse lung capacity differences.

9. Photosynthesis Experiment

Objective: To study the importance of sunlight in photosynthesis and its effect on plant health and growth.

Process: You need to follow these steps to perform the Photosynthesis experiment for Class 7 Science:

• To begin with, you have to take two identical potted plants.
• Now, you have to place one plant in sunlight and the other in complete darkness.
• Thereafter, you need to water both plants equally for a week.
• You need to now observe changes in leaf colour, growth, and overall health to understand the photosynthesis process.

10. Understanding Buoyancy through Boat Design

Objective: To explore the principles of buoyancy and how shape and material affect an object’s ability to float and hold weight.

Process: To understand the principles of buoyancy, you can create a boat design and follow the steps below:

• You need to design small boats using materials like aluminium foil or craft sticks.
• Now, you have to test the boat’s buoyancy by floating it in water.
• Gradually add weight (coins, small stones) and observe how much weight it can hold without sinking.
• Now, experiment with boat shapes to find the most stable design to understand buoyancy.

Explore More: 11 Ideas for Science Projects for Class 7 Working Models

Additionally, teachers can encourage their pupils to participate in the following Science Projects for Class 7 to expand their knowledge about Science.

• Investigating the density of different liquids by creating a density column.
• Play different genres of music to plants and observe their growth patterns and overall health.
• Study the science of aerodynamics by experimenting with different paper airplane designs. 
• Make a simple balloon rocket to explore the principles of motion.
• Use a magnet and experiment with different materials to see what is attracted to magnets and explore magnetic fields.
• Explore the concept of solubility by testing how different candies dissolve in water.
• Understand static electricity by conducting experiments with materials that create static charges. 
• Create a model of the solar system to illustrate the relative sizes and distances of planets. 
• Conduct experiments with baking soda and vinegar to demonstrate chemical reactions. 
• Set up an experiment with plants exposed to different light conditions (natural sunlight, artificial light, darkness) to observe their growth over a few weeks.
• Create a mini-ecosystem in a sealed jar to demonstrate the concept of a closed system

Explore NCERT Solution of Class 7:

Chapter 1: Nutrition in Plants	Chapter 2: Nutrition in Animals
Chapter 3: Heat	Chapter 4: Acids, Bases and Salts
Chapter 5: Physical and Chemical Changes	Chapter 6: Respiration in Organisms
Chapter 7: Transportation in Animals and Plants	Chapter 8: Reproduction in Plants
Chapter 9: Motion and Time	Chapter 10: Electric Current and its Effects
Chapter 11: Light	Chapter 12: Forests: Our Lifeline
Chapter 13: Wastewater Story	Top 7 STEM Activities Ideas for School Students

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