Middle School Project Ideas & Guides (6–8)
Science fair, NHD, models and research projects for grades 6–8 — with checklists and planners.
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Project ideas
Do plants grow better in sunlight or lamp light?
Grow identical bean plants under different light and measure height every two days.
Read the guideGrowing crystals: does temperature change crystal size?
Grow sugar or salt crystals at room temperature and in the fridge, then compare.
Read the guideWhich AA battery lasts longest?
Run identical flashlights with different batteries and record runtime.
Read the guideDoes music affect plant growth?
Grow plants in separate rooms with and without music; control water and light.
Read the guideHand washing vs. sanitizer: which leaves fewer microbes?
Swab hands onto agar plates after each method; keep plates sealed and dispose safely.
Read the guideDoes screen time before a test change reaction time?
Use a ruler-drop test before and after 20 minutes of games; repeat many trials.
Read the guideWhat drinks stain or soften eggshells (like teeth)?
Soak eggshells in different drinks and compare color and hardness over a week.
Read the guide3D plant or animal cell model
Build a labeled cell with foam, clay or edible parts and a key card.
Read the guideClosed terrarium ecosystem
Build a sealed jar ecosystem and journal what happens for two weeks.
Read the guideGuides for this grade
35 Science Fair Ideas for Middle School That Actually Win
Independent, Dependent and Controlled Variables Made Simple
How to Keep a Science Fair Lab Notebook
National History Day (NHD) Project Guide for Students and Parents
How to Build an NHD Exhibit Board That Stands Out
Primary vs. Secondary Sources: A Student Guide
50 Middle School Project Ideas Across Every Subject
How to Make a 3D Cell Model (Edible and Non-Edible)
Ecosystem Project Ideas: Terrariums, Food Webs and Models
Ancient Civilizations Project Ideas (Egypt, Rome, Maya, Taíno)
Group Project Survival Guide for Students
How to Research a School Project Online (Safely and Smartly)
How to Build a Rube Goldberg Machine for School
Greek Mythology and World Myths Project Ideas
Periodic Table Element Project Ideas
Country Report Project: Outline, Ideas and Checklist
How to Make a Great School Slideshow (Google Slides or PowerPoint)
How to Make an Infographic for a School Project
How to Make a Video Project for School With a Phone
Popsicle Stick Bridge Project: Designs That Hold Weight
Egg Drop Project Ideas That Work
Simple Circuit Projects for Kids (Safe Battery Builds)
Build a Solar Oven From a Pizza Box
Water Filtration Project for School
Hurricane Science Projects (Great for Florida Students)
Guides for every grade
How to Do a Science Fair Project Step by Step
How to Write a Strong Hypothesis (Templates Inside)
How to Make Data Tables and Graphs for a Science Fair
What Science Fair Judges Look For (and How to Talk to Them)
Hispanic Heritage Month School Project Ideas
Black History Month Project Ideas for Students
Timeline Project Ideas and How to Lay One Out