what to do for the science fair project

Eighth grade scientific discipline is frequently all about the scientific discipline fair, and so we've rounded upward lots of terrific project ideas for students to endeavor. Science teachers will find ideas here, besides, with hands-on activities and experiments kids tin practise in the classroom. These interactive ideas volition teach kids so much virtually science and the globe around them!

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ane. Water plants with diverse liquids

A series of plants in glass jars, labeled "salt" "lake" "rain" etc.

In this experiment, kids h2o plants with unlike liquids, like rainwater, tap water, saltwater, and even soda. They might be surprised at the results!

Learn more: Lemon Lime Adventures

2. Build a better lightbulb

Simple lightbulb built from a glass jar, battery, and wires (Eighth Grade Science)

Start, use the steps at the link to build a simple lightbulb with a jar, some wire, and a 6-volt battery. Then, plough it into an 8th course science fair experiment by tinkering with the diverse materials to make a lightbulb that lasts longer, burns brighter, or is powered by an culling source.

Learn more than: 123Homeschool4Me/Build a Lightbulb

iii. Design a robotic paw

Model robotic hand made from paper, straws, and string

This is a project that can be tweaked in a variety of ways. Challenge your students to make the model as shown at the link. Or encourage them to retrieve of ways they can improve upon the blueprint. Tin can they build a paw that tin pick upwardly a ball? How most one that can pluck up a piece of cord? Then many possibilities!

Learn more: Mombrite

iv. Compare electrolytes in sports drinks

Student using wires to test for electrolytes in a green drink (Eighth Grade Science)

Sports-loving kids will enjoy the hazard to learn just how many valuable electrolytes their favorite sports drinks contain. Compare them with water or orange juice for a cool science fair project. You'll need a few special supplies, like a multimeter and an Ohm resistor, only they're inexpensive and like shooting fish in a barrel to find.

Learn more: Science Buddies/Electrolytes

5. Measure algae growth

Mason jars filled with water and algae, along with other chemicals

Fertilizer runoff has become a serious cause of water pollution. In this experiment, students will come across its effects beginning hand and begin ways to keep it in check.

Acquire more: Layers of Learning

6. Drop an egg to prove the offset law of motility

Egg on top of a toilet paper tube, standing on a plate on a glass of water, with a man ready to hit the plate (Eight Grade Science)

This experiment looks similar a magic trick, but it's firmly grounded in Newton's Offset Law of Motion. When you lot knock the pie tin can out of the way, the egg falls directly into the glass, thanks to inertia. (Worried nigh making a mess? Use plastic eggs instead.)

Learn more: Steve Spangler Science/Egg Drib Inertia Trick

seven. Get together a Newton'due south cradle

Newton's Cradle built of wood craft sticks, yarn, and marbles

Newton'due south cradle is a fascinating way of demonstrating momentum and energy transfer. Follow the directions at the link to build one, or challenge 8th form science students to experiment with their own construction methods.

Learn more: Babble Dabble Do

8. Blow out a candle with a airship

Student's hand holding a bottle next to a lit candle, then showing the candle blown out

Blowing up a balloon with blistering soda and vinegar is the classic acids and bases experiment. Have it a step further by experimenting with the carbon dioxide information technology produces. (Don't be afraid of fire in the scientific discipline classroom! Here's why you lot should try information technology. )

Learn more: Edventures With Kids

9. Relight a candle without touching it

Student's hand holding a lighter over a candle that has just been blown out (Eighth Grade Science)

While you've got the candles out, endeavour this demonstration. Tell students you're going to relight a candle without touching the flame to the wick. The results will boggle their minds!

Larn more: Steve Spangler Science/Magic Traveling Flame

x. Measure and compare lung capacity

Two eighth grade science students measuring the circumference of a blue balloon

This experiment combines math and biological science to measure out lung capacity using a balloon. There are a lot of interesting hypotheses students can form, document, and explore while taking these measurements.

Larn more: Web log She Wrote/Measuring Lung Capacity

xi. Deport fingerprint analysis

Large fingerprint in black ink on white paper (Eighth Grade Science)

Budding forensic scientists will dear this idea. Learn to dust for prints and try a technique chosen "fuming" for trickier surfaces. See if yous can compare prints and brand authentic matches in the classroom. Y'all can buy a fingerprinting kit just for kids or use supplies from around the house.

Learn more: Home Science Tools/Fingerprinting

12. Engineer a roller coaster loop

Two students building a marble roller coaster from foam insulation tubes

Kids may have created marble roller coasters before, but have they always built one with a loop-de-loop? They'll have to experiment to find out which initial pinnacle gives a marble the speed it needs to complete the journey.

Learn more: Science Buddies/Roller Coaster

thirteen. Extract your ain Deoxyribonucleic acid

Test tube with cloudy liquid and small white floating strand (Eighth Grade Science)

Dna is the pattern of life, and you lot'll be surprised at how easy it is to extract your ain with a few unproblematic supplies. Preserve it in alcohol in the freezer when you're washed.

Acquire more: Dwelling house Science Tools/Extract Dna

14. Separate water into hydrogen and oxygen

Eighth grade girl wearing goggles, looking at a container of water with test tubes and electric wires

Use electrolysis to prove that water really is fabricated up of hydrogen and oxygen. It'due south a simple concept, but 1 that never fails to amaze.

Acquire more: Navigating by Joy

15. Build a circuit to detect ripe produce

Electrical equipment set up to conduct an experiment (Eighth Grade Science)

Here's a science fair project that's sure to impress. Build a circuit that can differentiate between two different colors, then use it to tell which tomatoes are ripe and which aren't. You can find all the supplies you demand at Amazon, including a multimeter, jumper wire kit, and battery holder.

Learn more: Science Buddies/Fruit Circuits

sixteen. Observe the strength of interleaved newspaper

Orange clamps holding sticky notes to a piece of wood, with a binder clip at the bottom holding paper clips (Eighth Grade Science)

Newspaper seems smooth and slides apart easily, right? This experiment challenges that notion past interleaving multiple pieces of paper and testing their strength. It's an piece of cake project with fascinating results.

Learn more than: Science Buddies/Interleaved Paper

17. Guide a growing establish through a maze

A plant in a cardboard box, growing in a twisted pattern through holes toward light at the top

Prove that plants actually do seek out the light past setting upward a simple or complex maze. This is a simple eighth grade science projection with really cool results.

Acquire more than: KiwiCo/Found Maze

eighteen. Discover out if peppermint improves reaction time

Hand taking an Altoid mint from a tin, with a keyboard and other small items (Eighth Grade Science)

Round up some friends and family unit who are willing to exist republic of guinea pigs, then find out if peppermint candy actually does improve concentration and reaction time—and test scores.

Learn more: Science Buddies/Peppermint Reactions

19. Turn juice into spheres

You'll demand a few special supplies for this experiment, just the results are then absurd. Spherification is a chemical process that's become popular with food scientists, and your 8th grade science students volition get a kick out of seeing it in action.

Learn more than: Science Buddies/Spherification

20. Raise a hydraulic elevator

Simple hydraulic elevator made from wood craft sticks, rubber tubing, and plastic syringes

This hydraulics projection was originally written for younger kids, only it works for older ones but also. They can tinker around with the design and see just how much weight their elevator can hold.

Larn more: Teach Beside Me

21. Abound a carbon carbohydrate snake

Tin pan of sand with large carbon snake growing out of it (Eighth Grade Science)

Recollect those petty black pellets that burn down upward into long snakes on the 4th of July? This is the same concept, just much bigger! The simple chemical reaction of sugar and baking soda makes it happen.

Learn more: KiwiCo/Carbon Serpent

22. Generate a Lichtenberg figure

Lightning pattern made on piece of acrylic with photocopier toner

Lichtenberg figures capture the branching path of electricity equally it travels through an object. Y'all tin make your own in a variety of ways, including burning information technology into wood or acrylic.

Larn more than: Scientific discipline Notes

23. Teach a estimator to play tic-tac-toe

Clear X and O figures on a black background

This intermediate Javascript coding project requires some very basic background programming knowledge. It's perfect for kids with an interest in all things computers.

Larn more: Scientific discipline Buddies/Tic-Tac-Toe

24. Cast beast tracks

Plaster cast of dog footprint next to autumn leaves, dated 7/25/15

Explore wildlife biological science past becoming an expert tracker! Learn to identify tracks and take casts, even if you can't get for a hike in the woods.

Learn more: Blog She Wrote/Bandage Animate being Tracks

25. Construct a Rube Goldberg auto

Car running down a ramp toward a series of dominos, mounted on a pegboard (Eighth Grade Science)

Create a auto to consummate a simple task in the most complicated fashion! This is a keen 8th class science project because it allows you to use a diversity of physics concepts in a fun fashion. Meet an example in this YouTube Video, and larn more nearly Rube Goldberg machines here.

26. Block the lord's day's UV rays

8th Grade Science UV Steve Spangler

Use color-changing UV beads to test the protective power of medicine bottles, hats, wear, and more. This is an 8th grade scientific discipline experiment with nearly endless possibilities.

Learn more: Steve Spangler Science/Blocking UV Rays

27. Build an infinity mirror

Two mirrors showing reflection of lights stretching into the distance

Experiment with optical illusions by creating a tunnel of lights that seems to stretch away into infinity. 8th grade students will learn about engineering and the physics of optics along the way.

Larn more: Science Buddies/Infinity Mirror

28. Mash upward some root beer

Bowl filled with root beer and dry ice, spilling over with white vapors (Eighth Grade Science)

Who says science can't be delicious? Plus, any experiment where you become to utilise dry water ice is always fun (take proper condom precautions, please). This yummy project teaches chemical reactions and, of course, requires a taste test.

Learn more than: Steve Spangler Science/Root Beer Scientific discipline

29. Construct a cup holder

Student showing a foil platform balanced on drinking straws, holding two yellow plastic cups of water

Tin can your 8th grade science students build a device to stabilize and comport two cups of water, using merely a few unproblematic supplies? Oh, and can they manage information technology in simply 5 minutes? This timed challenge pushes their creative engineering limits!

Learn more than: Homeschool Creations

thirty. Test h2o quality

Water quality testing kit with TDS meter

A h2o testing kit opens up limitless options for eighth form science experiments. Test the h2o quality of local streams, swimming pools, or even their taps at home.

Learn more: The Homeschool Scientist

31. Assemble a bound scale

Red plastic bucket suspended by several paper clips from a spring on a hook (Eighth Grade Science)

Utilize Hooke's Law to find out if the stretching of a spring can be used to accurately measure the weight of objects. The materials are simple, but you lot'll need patience and physics to calibrate a spring and use it to exam weights.

Learn more: Science Buddies/Build a Calibration

32. Extract bismuth from Pepto-Bismol

Black mortar filled with pink powder and a pestle

This is the kind of project that really makes yous feel like a scientist. Grinding tablets with a mortar and pestle, filtering in beakers, heating over a Bunsen burner… kids volition demand supervision and some special materials, but their inner chemist will love information technology all.

Learn more: Popular Scientific discipline

33. Make a solar desalinator

Plastic wrap covered container of water linked to a cup by drinking straw

Clean freshwater is a valuable commodity. Construct solar-powered desalination devices with readily available materials, and find the near effective desalination methods.

Larn more: Science Buddies/Solar Desalination

34. Perform a starch test with iodine

Test tube with yellow liquid labeled neg, test tube with black liquid labeled pos, and stoppered bottle filled with iodine (Eighth Grade Science)

This simple chemistry experiment uses iodine to determine the starch content of food items. In a globe that's go more than aware of the effects of starch on our diet, this seems like a timely activity.

Larn more: Biology Notes for IGCSE

35. Go along your hands warm

Man rubbing hands together with plastic bag of black liquid in between

If you lot live in a chilly part of the globe, chances are you've seen chemical hand-warmers for sale. In this 8th grade scientific discipline experiment, you'll make your own hand-warmer past harnessing the ability of oxidation. You'll demand water crystals, fe oxide filings, and calcium chloride.

Learn more: Steve Spangler Scientific discipline/Bootleg Hand Warmer

36. Explore symbiosis with nitrogen-fixing bacteria

Frozen peas next to two plant containers labeled control and bacteria (Eighth Grade Science)

Many plants depend on nitrogen for growth, but how of import is it? This science project compares the growth of pea plants with and without nitrogen-fixing bacteria.

Learn more: Education.com/Nitrogen and Plants

37. Crash cars for scientific discipline

Collage of STM car crash project images

This is a bully form project for teachers, but it'due south also fantabulous for an 8th grade science fair experiment. Build cars and crash-test them to learn the best methods of keeping passengers prophylactic.

Acquire more: The Agog Teacher

38. Find the center of gravity

Wood craft stick balanced on end on a pencil, with orange pipe cleaner twisted around it (Eighth Grade Science)

Once you find and maintain its middle of gravity, almost any object will residuum, fifty-fifty in surprising circumstances. This is such a fun concept to play around with!

Learn more: Rookie Parenting

39. Power upward homemade batteries

Bottle of distilled white vinegar, paper towel, aluminum foil, duct tape, pennies, electrical wires, and voltmeter

Building batteries is a archetype science experiment for whatsoever age. Make information technology into a projection past trying different variables and exploring the amount of power you can produce.

Larn more: 123 Homeschool 4 Me

xl. Examine the connection between personality and retention

Notecard labeled Personality Type INFJ and worksheet labeled Memory Tests

Do introverts have better memories than extroverts? This scientific discipline project aims to find out. Round upwards some willing volunteers and administer the Meyers-Briggs personality test, then claiming your subjects with a memory exam. The results may or may non surprise yous!

Learn more: Education.com/Memory and Personality

41. Contrive and test your ain shampoo

Mixing bowl with castille soap, jar of water, essential oils, and herbs

E'er wonder what makes shampoo effective? In this experiment, you'll cook up your own recipes and endeavour them out to see which ingredients work best.

Larn more: Science Buddies/DIY Shampoo

42. Fuel a moving-picture show canister rocket

Film cannister rocket taking off from a red plastic plate (Eighth Grade Science)

Fire a film canister into the air using the chemical reactions of Alka-Seltzer. Once you've mastered the basic process, experiment with unlike strengths of solutions and sizes of container to come across how high your rocket tin go.

Learn more than: Steve Spangler Scientific discipline/Film Canister Explosion

43. Stand up on a pile of newspaper cups

Student standing on top of a structure built from cardboard sheets and paper cups

Combine physics and engineering science and challenge 8th grade science students to create a paper cup structure that can back up their weight. This is a absurd projection for aspiring architects.

Larn more: Science Sparks

44. Create a rainbow of flames

Flames of orange, yellow, green, pink, and red against a black background

Yous tin can change the color of fire past adding chemicals establish at your local grocery store—what a sight! This experiment is easy to prepare, only of course, requires rubber precautions.

Acquire more than: ThoughtCo

45. Get your laundry really clean

Container of OxiClean with beakers of liquid on a counter (Eighth Grade Science)

Detect out if all those laundry detergent commercials are really telling the truth with this eighth grade science off-white experiment. Test their cleaning power on a variety of stains and fabrics, and analyze your results.

Learn more than: Steve Spangler Scientific discipline/Science of Cleaning Products

Appoint your eighth grade science students further with these xvi Science Kits for Middle and High School That Make Easily-on Lessons Like shooting fish in a barrel.

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45 Eighth Grade Science Fair Projects and Classroom Experiments

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Source: https://www.weareteachers.com/8th-grade-science-projects/