As kids love creating things, STEM challenges make for fantastic science fair projects. From showing how a pulley system operates to designing edible DNA to learn about chemical bonds – kids love making projects!
Newton’s Second Law can be difficult to grasp, so this 4th grade science experiment makes it straightforward and allows pupils to observe its operation first-hand. Additionally, they’ll get an opportunity to investigate which factors affect crystal growth.
1. String of Beads
Students will explore waves through this simple yet engaging experiment. Students will see that moving the beads can create an arc shape when moved back and forth.
This classic science project introduces children to inertia, gravity and potential energy – three concepts vital for understanding Newton’s Law of Motion. They’ll love this colorful way to demonstrate it!
Use this captivating string model to demonstrate how Earth’s planets move through our solar system. Younger children may need the planet distances marked on a table for easy follow along.
2. Marbles in a Cup
Show students the difference between potential and kinetic energy with this simple activity. They’ll also discover how ramp height impacts distance traveled by marbles.
This classic chemistry experiment is fun, colorful and impressive! Children will see how adding salt or sugar alters water’s density while simultaneously exploring how temperature impacts viscosity – providing a wonderful demonstration of Boyle’s Law!
3. Newton’s Second Law
Use this hands-on experiment to teach students about Newton’s second law of motion. This physics project illustrates the direct relationship between force, mass and acceleration.
Students conduct an experiment using toy cars, books and meter sticks to demonstrate the influence of mass on speed. Students record data during multiple trials before creating a graph and report detailing how their experiment demonstrates Newton’s second law of motion.
4. Light Refraction
Refraction occurs when light travels through a transparent medium with different densities. This phenomenon is called refraction.
Kids work in small groups as they visit four stations to examine light energy behavior: refraction, magnification, prisms, and polarization.
This fun experiment explores whether milk plastic is really as strong as other types of casein plastic, providing an opportunity to practice scientific method.
5. Magnets
Help your kids explore this concept using paper clips, bar magnets and thread or wire cutters in a straightforward project!
Students can create an electromagnet using materials like nails, insulated wire, tape and steel pins – an effective way to teach children about magnetism found in everyday devices like phones and computers.
6. Floating Markers
Floating markers aren’t just enjoyable–they’re also an engaging way to teach children about density differences between materials. With this easy science experiment, students can discover why dry erase and permanent marker ink floats or sinks.
Explore the science of earthquakes using this jello-based model. Fourth graders will gain an understanding of the forces responsible for seismic waves through this hands-on activity! In addition, students will design pulley systems to lift loads.
7. Wigglebot
Be inspired by engineering with this fun battery experiment! Students will witness first-hand how motor and battery systems function.
This simple 4th grade science project shows Boyle’s Law in an engaging and delicious way! Children will delight at witnessing its results.
Lemon Lime Adventures’ DIY Scribble Bot uses a clothespin instead of cork to unbalance it, and tests whether decorating the robot influences how it moves and creates patterns.
8. LED Flashlight
Discover photosynthesis through a straightforward plant experiment designed especially for kids! Perfect as part of a science fair project or home science assignment for fourth graders.
Discover how adding various objects affects the density of water with this exciting chemistry experiment, while practicing hypotheses making.
Discover the transfer of energy with this engaging physics experiment designed to engage kids. Students will enjoy exploring Boyle’s Law first-hand through this hands-on learning opportunity!
9. Hovercraft
Hovercrafts use simple physics to minimize friction and enable them to travel over both water and land, coined the term by British engineer Dr Christopher Cockerell after conducting tests using two empty tins placed inside one another and an annular jet of air.
Build CD hovercrafts with students and conduct an experiment to see how different sizes of balloons affect how long their crafts can float for. Record their findings in a table.
10. Projector
Projectors are great science fair projects for 4th graders interested in electronics and technology.
Impress the judges with a visually captivating layered liquid density experiment! It’s an engaging way for children to understand how varying ingredients such as sugar can affect density levels in solutions.