Here are the 50 science project for school science exhibition using plastic bottles:
Bottle Ecosystem: Create a self-contained ecosystem inside a plastic bottle to study interactions between plants, animals, and microorganisms.
Tornado in a Bottle: Build a tornado simulator by creating a vortex in a water-filled plastic bottle.
Solar Water Heater: Construct a solar water heater using plastic bottles to demonstrate solar energy conversion.
Water Filtration System: Design a simple water filtration system using plastic bottles and various filtering materials.
Hydraulic Arm: Build a hydraulic arm using plastic bottles and syringes to explore fluid mechanics and pressure.
Seed Germination: Observe and compare seed germination rates and growth in plastic bottle mini-greenhouses.
Rain Gauge: Create a rain gauge using a plastic bottle to measure and collect rainfall.
Plastic Bottle Rocket: Design a water-powered rocket using a plastic bottle and investigate principles of propulsion.
Mini Wind Turbine: Build a miniature wind turbine using a plastic bottle and investigate wind energy.
Plant Watering System: Develop an automated plant watering system using a plastic bottle, tubing, and a drip mechanism.
Ocean Plastic Pollution Model: Create a model to demonstrate the impact of plastic pollution in the ocean using plastic bottles and marine debris.
Composting Demonstration: Build a mini composting system inside a plastic bottle to study decomposition.
Aquaponics System: Construct a small-scale aquaponics system using plastic bottles to demonstrate the symbiotic relationship between plants and fish.
Bioluminescent Algae Display: Cultivate bioluminescent algae inside a plastic bottle to explore natural light production.
Plastic Bottle Music Instruments: Design musical instruments using plastic bottles to investigate sound production.
Air Pressure Experiment: Demonstrate air pressure by crushing a plastic bottle using atmospheric pressure changes.
Drip Irrigation System: Create a drip irrigation system using plastic bottles to efficiently water plants.
Terrarium: Build a terrarium inside a plastic bottle to study plant growth, humidity, and ecosystem dynamics.
Rainforest Ecosystem: Construct a rainforest ecosystem within a plastic bottle to explore biodiversity and interactions.
Plastic Bottle Whirligig: Design a whirligig using a plastic bottle to demonstrate rotational motion and aerodynamics.
Bottle Submarine: Build a submarine using a plastic bottle to investigate buoyancy and pressure changes underwater.
Wave Generator: Create a wave generator using plastic bottles to observe wave behavior and interference.
Sensory Bottle: Make sensory bottles with various liquids and objects to explore density and liquid properties.
Microplastics Detection: Develop a method to detect microplastics in water samples using a plastic bottle and filtering techniques.
Air Pollution Detector: Build an air pollution detector using a plastic bottle and sensors to measure air quality.
Solar Still Experiment: Construct a solar still using a plastic bottle to purify water through distillation.
Lava Lamp: Create a homemade lava lamp using oil, water, and a plastic bottle to study liquid density and motion.
Homemade Barometer: Build a barometer using a plastic bottle to measure changes in atmospheric pressure.
Seedling Transplantation System: Design a system using plastic bottles to facilitate transplanting young seedlings.
Wind Speed Anemometer: Create an anemometer using plastic bottles to measure wind speed.
Balloon-Powered Car: Design a car powered by a balloon and a plastic bottle to study propulsion and motion.
Plastic Bottle Microscope: Construct a simple microscope using a plastic bottle and a lens to magnify small objects.
Seed Bomb Launcher: Build a seed bomb launcher using a plastic bottle to distribute seeds for reforestation.
Plastic Bottle Hygrometer: Create a hygrometer using a plastic bottle to measure humidity.
Plastic Bottle Balance: Design a balance or scale using plastic bottles to compare masses.
Plastic Bottle Bird Feeder: Make a bird feeder using a plastic bottle to study animal behavior and feeding patterns.
Geometric Solids Model: Construct geometric shapes and solids using cut and reassembled plastic bottle pieces.
Rainwater Harvesting System: Design a rainwater harvesting system using plastic bottles to collect and store rainwater.
Solar Oven: Build a solar oven using a plastic bottle and aluminum foil to demonstrate solar heating.
Plastic Bottle Tornado Tube: Create a tornado tube using two plastic bottles to simulate a vortex.
Plastic Bottle Spectroscope: Design a spectroscope using a plastic bottle and diffraction grating to analyze light spectra.
Plastic Bottle Barbot: Build a robot or automated device using plastic bottles to perform a specific task.
Plastic Bottle Air Freshener: Create a natural air freshener using a plastic bottle and essential oils.
Plastic Bottle Thermometer: Design a thermometer using a plastic bottle and colored water to measure temperature changes.
Plastic Bottle Kaleidoscope: Build a kaleidoscope using a plastic bottle and reflective materials to explore symmetry and patterns.
Plastic Bottle Stomp Rocket Launcher: Construct a stomp rocket launcher using a plastic bottle to study projectile motion.
Plastic Bottle Lungs Model: Create a model of human lungs using a plastic bottle and balloons to demonstrate breathing.
Plastic Bottle Pinhole Camera: Build a pinhole camera using a plastic bottle and photographic paper to capture images.
Plastic Bottle Water Clock: Design a water clock using a plastic bottle to measure time based on water flow.
Plastic Bottle Windsock: Create a windsock using a plastic bottle to study wind direction and speed.