No matter if it involves measuring and capturing cockroaches’ direction preferences or exploring how water washes away sand from beaches, science fair projects for 4th graders will help students learn essential scientific concepts while developing skills for using the scientific method and creating posters or presentations.
Candies make for an engaging way of showing students the effect that adding items to water has on its density. They will find this visual demonstration especially informative!
Build a Wigglebot
The Wiggle Bot engages children in science and technology through electricity, circuits and vibrational energy. With help from this Go Guide and additional TeacherGeek building components, this motorized contraption can doodle, write, dance and race!
This classic science experiment shows how different heights affect how an object falls, using Boyle’s law to analyze results. Students apply Boyle’s law and observe its effects.
Discover how temperature affects the density of water! It may appear like magic, but this experiment teaches real science!
Build a Hovercraft
Hands-on experiments are the key to getting kids excited about science. These 4th grade experiments teach children about physics, biology and engineering concepts.
Discover how hovercrafts move along surfaces without touching them by building one yourself out of CD and sports cap. This experiment is simple to execute and will teach students about air pressure, friction and different surfaces’ effect on craft speeds.
Build a LED Flashlight
An LED flashlight is an engaging project for kids to learn more about electrical circuits. By swapping out its battery and LED, children can see that polarity must be used in order for the light to come on.
Science fair projects must be original to be effective; otherwise, judges could suspect the student of having received undue help from adults, which would be unfair to other students who conducted the experiment independently. To prevent this situation from arising, students should work alongside an advisor who can guide them through this process.
Build a Seismometer
This seismometer enables students to play the role of seismologists by measuring ground motion and analyzing recorded data. Although some electronics know-how may be needed for completion, this project can easily be accomplished under $100 and provides students with exposure to Earth sciences, magnetism and physics.
Students will love this easy but eye-opening experiment! They’ll layer colored sugar water to demonstrate how different substances affect density. It’s a fun way to explore Boyle’s law while making learning about it exciting for younger children!
Build a Projector
With this DIY project, children will learn about convex lenses and how the brain processes images. Additionally, they’ll create an enlarged and projected image so as many people as possible can view it.
Avoid conducting experiments that follow an established recipe (for instance, testing battery life or laundry detergent efficiency). These don’t qualify as true science projects.
Children love growing crystals, and this straightforward experiment gives them an opportunity to explore various materials. Plus, they’ll marvel over its results! This experiment about diffusion will prove fascinating!
Build an Elevator
Elevators or lifts are fascinating engineering devices. This simple model elevator project will help children understand how pulleys and counterweights function.
4. Floating Marker
This eye-opening experiment will stun students. It provides a wonderful way to demonstrate how density and temperature impact surface tension of liquids.
Build a Casein Plastic
Make milk into plastic for an engaging science experiment to explore polymers! Kids will be amazed that it doesn’t require toxic chemicals; all it needs are some household items.
In this experiment, milk’s casein (found in all mammals) reacts with white vinegar acidity to form a plastic-like material which can be easily molded into shapes. Experiment with various kinds of milk as well as altering its amount and heating temperatures of vinegar use for maximum results.
Build an Earthquake-Proof Structure
Hands-on experiments are an ideal way to spark their interest in science. These hands-on projects offer projects covering biology, chemistry and physics for kids of all ages.
Engage your students with this fun experiment that shows how adding different ingredients alters water density, as well as teaching them about acid-base reactions and chemical formulas.
This project shows kids how to take their results and use them to form a hypothesis, strengthening their ability to use scientific methods at home.
Build a Sharpie Marker
Science fairs can be an exciting way for students to explore various sciences such as physics, biology, chemistry and engineering. Students can select an intriguing scientific question from either library research or the Internet then design an experiment to test it and evaluate their hypothesis.
This spectacular science experiment may appear more like an impressive magic trick, but it actually teaches kids about light refraction. They will marvel as water reflects its color onto a marker.