Objective:
To design and build a marble run using household materials, and learn about gravity, motion, and engineering principles like problem-solving and design iteration.
Mate...

Objective:
To create a simple battery using a lemon, copper, and zinc, and to learn about electrochemical reactions and how batteries generate electricity.
Materials:
• 1 lemo...

Objective:
To create a cloud inside a bottle using air pressure and water vapor, and to learn about the condensation process and how clouds form in the atmosphere.
Materials:
�...

Objective:
To build a simple windmill that demonstrates how wind can be used to generate mechanical energy, and to learn about the conversion of wind energy into motion.
Material...

Objective:
To build a functional hydraulic arm using syringes and tubing to control movement, learning about hydraulic systems and how they use fluid to generate force.
Materials...

Objective:
To build a simple electrical circuit using playdough as a conductor, and to learn about how electricity flows through a circuit to light an LED.
Materials:
Two types ...

Objective:
To build a simple boat that moves across water using the power of a balloon. This project helps children understand the concepts of air pressure, thrust, and force.
Ma...

Objective:
To build a simple, working robot using basic materials such as motors, batteries, and other household items. Children will learn about basic circuitry, how motors work,...

Objective:
To design and build a paper bridge that can hold as much weight as possible, using only paper and tape. The goal is to test the bridge's strength and stability by addin...

Objective:
To grow crystals using a supersaturated solution of water and salt (or sugar) and observe the crystal formation over time.
Materials:
For Salt Crystals:
• Table sa...

Concept: Newton’s Laws of Motion, Air Pressure
Materials Needed:
• Plastic soda bottle (2-liter size works best)
• Water
• Cork or rubber stopper (that fits tightly in ...

Concept: Water Purification, Filtration
Materials Needed:
• Plastic bottle (or any container with a narrow neck)
• Scissors or utility knife (to cut the bottle)
• Sand (f...

Concept: Chemical Reactions, pH
Materials Needed:
• Lemon juice (or vinegar, baking soda solution, or milk)
• Cotton swabs (or a paintbrush)
• White paper (or any light-c...

Concept: Renewable Energy, Heat Transfer
Materials Needed:
• Pizza box (or any large cardboard box)
• Aluminum foil (for reflecting sunlight)
• Black construction paper (...

Concept: Force, Impact, Materials
Materials Needed:
• Eggs (one or more, depending on how many trials you want to run)
• Various materials for building the egg protection de...

Concept: Electricity, Conductivity
Materials Needed:
• Paper (preferably cardstock or thick paper)
• Copper tape (with adhesive backing for making the circuit)
• LEDs (li...

Concept: Light Refraction
Materials Needed:
• A glass of water (preferably a clear glass or jar)
• A flashlight or direct sunlight
• A white sheet of paper (or a white su...

Concept: Estimation, Counting
Materials Needed:
• Clear jar or container (glass, plastic, or any clear container that is big enough to hold the items you’ll use)
• Small o...

Concept: Aerodynamics, Energy
Materials Needed:
• A rubber band (large, sturdy one)
• A plastic or wooden stick (about 6-8 inches long)
• A paperclip (optional, but helps...

Concept: Capillary Action
Materials Needed:
• White flowers (like carnations, daisies, or chrysanthemums-flowers with white petals work best)
• Food coloring (in various col...

Concept: Structural Design, Stability
Objective:
The goal is to build the tallest tower possible using marshmallows and spaghetti (or other materials), while ensuring that the st...

Concept: States of Matter, Viscosity
Materials Needed:
• Cornstarch (1 to 2 cups)
• Water (1/2 to 1 cup)
• Food coloring (optional, for fun color)
• A bowl
• A spoo...

Concept: Force, Motion, Air Pressure
Materials Needed:
• A small plastic bottle (e.g., a 500 mL or 1-liter bottle)
• 2 straws
• A balloon
• 4 bottle caps (for wheels)
...

Concept: Density, Chemical Reactions
Materials Needed:
• A clear plastic or glass bottle (like an empty soda or water bottle)
• Water
• Vegetable oil (or another light oi...