Science Projects for Class 8, Best Projects and Working Models

Science projects for Class 8: Science and its application are far beyond the textbook experiments and activities we did when we were kids. However, to enhance the student's interest in science subjects and assist them in acing the basics, these simple and interactive experiments and observation projects help them learn different concepts of science. The students are asked to complete their science assignment by the end of the year in which they have to pick a topic, conduct an experiment, and make a conclusion on all of their chosen scientific principles with the help of their science project. Read the complete blog to know about the interactive and best science project for class 8, which can lend you a hand in getting more profound into the spell of science while also scoring a good score in any class. 
 

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Table of Content

Best science projects for class 8

Top 40 Science Projects for Class 8

Science Projects for Class 8 for Exhibitions

The boiling point of water

Potato Battery

Measuring Glucose In Food

Pinhole camera

Thermal conductivity of metals

Astronomical telescope

Cotton candy machine

A working model of the human heart

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Best science projects for class 8

For the best science projects for class 8, students are usually asked to conduct an experiment or activity or design a working model, which explains the scientific principle they can pick. Therefore, we will elaborate on how you can conduct simple experiments and create a working model in this blog.
 

Top 40 Science Projects for Class 8

Here is a list of top science projects for Class 8-

• Drop an egg to prove the first law of motion
• Assemble a Newton’s cradle
• Create a roller coaster loop
• Extract your DNA
• Separate water into hydrogen and oxygen
• Build a circuit to detect ripe produce
•  Discover the strength of interleaved paper
• Guide a growing plant through a maze
• Find out if peppermint improves reaction time
• Assemble a spring scale
• Extract bismuth from Pepto-Bismol
• Make a solar desalinator
• Perform a starch test with iodine
• Keep your hands warm
• Explore symbiosis with nitrogen-fixing bacteria
• Crash cars for science
• Discover the center of gravity
• Power up homemade batteries
• Examine the connection between personality and memory
• Concoct and test your own shampoo
• Fuel a film canister rocket
• Stand on a pile of paper cups
• Create a rainbow of flames
• Blow out a candle with a balloon
• Relight a candle without touching it
• Measure and compare lung capacity
• Build an infinity mirror
• Brew up some root beer
• Construct a cup holder
• Fingerprint analysis
• Get your laundry really clean
• Test water quality
• Raise a hydraulic elevator
• Grow a carbon sugar snake
• Generate a Lichtenberg figure
• Teach a computer to play tic-tac-toe
• Cast animal tracks
• Construct a Rube Goldberg machine
• Block the sun’s UV rays
• Turn juice into spheres 

 

Science Projects for Class 8 for Exhibitions

Here are some science projects for Class 8 for Exhibitions-
 

The boiling point of water

Water in its pure form has a particular boiling point, and when we keep adding chemicals or solutions to the water, its boiling point charges. 
For this interactive and simple science project for Class 8, you need some basic household materials like Salt, jaggery, sugar, oranges, lemon juice, tea, oil, etc. You should ask an adult in your family to assist and supervise you in determining the boiling point of water while adding a different material each time. Keep a record of your observation of these materials and make your science project consequently. 

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Potato Battery

Are you aware of the fact that the potato, which is used in our kitchen, can ask to convert Chemical energy into Electrical energy?
Potato has various nutrients that behave as chemicals that can be used as an electrical battery. Therefore, we can make a distinctive working model for a Class 8 science project out of it. Take some potatoes to make your own potato Battery, and make it simple. Get two potatoes, copper electrodes, zinc, a small bulb or digital clock, and 6 alligator clips. 

1. Firstly, add the copper electrodes and zinc to the potato.
2. Afterward, use alligator clips to connect the electrodes to the clock or bulb.
3. Do this experiment under adult supervision.

 

Measuring Glucose In Food

Almost all the meals we eat in a day consist of carbohydrates or sugar. However, the form in which we consume meals is different, and the one found inside the human body is different. Glucose splits into simpler forms in our body. You can go for a glucose experiment for your class 8 signs project. Here, you can examine the presence of carbohydrates and how much glucose is present in the food. As per your preference, gather some food materials of daily use, such as food dye, plastic, glasses, room temperature, water, and knife, and make a record of your observations.
You may also need glucose reading strips for this science project. Make a positive strip by sinking a glucose strip into a sugar-based glucose solution and a negative strip by plunging a glucose strip into the water. Afterward, determine the food you have taken on these two trips and keep a record of your observations.
 

Pinhole camera

You may have heard about various high-end cameras. However, a pinhole camera is something that you can make from simple household materials. The camera does not consist of any kind of lens. Instead, it is a light-proof box containing a small hole on one of its sides.
Light from one side will go down into its end and making use of its effort, it will reflect the picture on the other side. The image created by this lens is inverted; therefore, it becomes a tree basis of your complete assignment.
 

Thermal conductivity of metals

You must have heard about the thermal conductivity of metals in any other day-to-day life. However, have you ever thought it can be a Popular Science project for class 8? Yes, it can. Have you ever seen that the pan in which you cook gets all heated up involving the handles, and the tongue with which you cook Chapatis becomes hot?
This happens because of the thermal conductivity in a solid. It means that the molecules of solid move in a diverse direction and spread the heat when we heat them up. For your assignment, you can choose a bunch of solid materials and check at which temperature the object gets heated up and up to how many degrees of temperature.
 

Science working model for class 8

Below is a list of working models for class 8 science projects-

• Periscope
• Solar cell 
• Wind turbine
• Biogas plant
• Astronomical telescope
• Cotton candy machine
• Creating a working model of the human heart

Now, let’s choose some of these working models for Class 8 science projects and learn how to make them.
 

Astronomical telescope 

A telescope is an optical tool that is used to make an observation of distant objects. The objects, which are from far from us, look closer with the help of a structure of curved mirrors and lenses. The rays of light are gathered and focused on making a magnified picture.
 

Cotton candy machine

A cotton candy machine works the same way everywhere in the world, and you can make a working model of a cotton candy machine in your home. Yes, you heard it right. When the sugar is heated up, it turns into liquid caramel. If the liquid caramel is pushed through small gaps to the outside by centrifugal force when the container revolves around, the cotton candy is prepared by the process of recrystallization.
 

A working model of the human heart 

One of the most popular working models of a science project for class 8th is the human heart working model. This assignment only needs a PVC pipe cap, drip pipe, physioball, and balloons. The project will hardly take an hour to get completed, and you will be able to convince your teacher of your project.