Evaporation Olympics: Which Liquid Disappears Fastest? Age range: 7–13Time: 30–60 minutes (plus drying)Concepts: evaporation, surface area, volatility, temperature Goal Compare evaporation rates of safe household liquids and surfaces. Materials Water, vinegar, and isopropyl rubbing alcohol (70%) 3 identical plates or shallow lids Small measuring spoon Timer Thermometer (optional) Fan (optional) Safety Use isopropyl alcohol in …
Evaporation Olympics: Which Liquid Disappears Fastest?Read More »
Materials: Plastic bottle (cut in half) Sand, gravel, activated charcoal Coffee filter or cloth Dirty water (can be made with soil and water) Clear glass or container Goal / What They Will Learn: Learn about physical filtration, sedimentation, and water purification processes. Expected Outcome: The dirty water will come out clearer after passing through the …
Age range: 6–12Time: 20–40 minutesConcepts: forces, compression/tension, engineering design Goal Discover how folding and shaping paper changes its load-bearing strength. Materials 10–15 sheets of plain printer paper 2 equal-height stacks of books (supports) Coins or small washers (weights) Ruler and pencil Tape (optional) Safety No special risks. Supervise younger kids around stacks of books so …
DNA Extraction from Strawberries Materials: Fresh strawberries Ziplock bag Dish soap Salt Water Rubbing alcohol (chilled) Coffee filter or cheesecloth Clear glass Goal / What They Will Learn: Understand basic DNA structure and how it can be extracted using simple chemistry. Expected Outcome: White, stringy DNA will become visible in the alcohol layer, showing how …
Albedo Effect and Climate Change Objective: Investigate how surface color affects heat absorption and Earth’s energy balance. Materials: 2 identical thermometers White paper Black paper 2 clear jars or boxes Sunny outdoor space Timer Procedure: Wrap one thermometer in black paper, the other in white. Place each under a clear jar and set in direct …
Measure pH Using Red Cabbage Indicator Materials: Red cabbage Blender or pot to boil cabbage Strainer Clear cups Substances to test (vinegar, baking soda solution, lemon juice, soap water, etc.) Goal / What They Will Learn: Understand acids, bases, and pH indicators using natural materials. Expected Outcome: The cabbage indicator will change color depending on …
Simulating Plate Tectonics with Foam and Sand Objective: Understand how tectonic plates interact at different boundaries. Materials: 2 foam sheets (around 8×8 inches) Tray with 1 inch of sand Ruler Marker Procedure: Mark the center of each foam sheet. Place both foam sheets in the sand tray side-by-side to represent tectonic plates. Slowly move the …
Acid Rain and Its Effect on Limestone Objective: Study the effects of acid rain on calcareous rocks like limestone. Materials: Vinegar (as a weak acid) Tap water 2 identical pieces of limestone or chalk 2 jars Labels Procedure: Place one piece of limestone in vinegar and the other in water. Observe over several days, noting …
Materials: Iron nail (3–4 inches) Copper wire (insulated) AA battery Electrical tape Paper clips or small metal objects Goal / What They Will Learn: Understand how electricity can produce a magnetic field and explore the principles of electromagnetism. Expected Outcome: When current flows through the wire wrapped around the nail, the nail becomes magnetized …
Objective: Demonstrate how water filtration works using natural materials. 🧪 Materials: 2-liter plastic bottle (empty & clean) Gravel Sand (fine and coarse) Activated charcoal (can be found in pet or aquarium stores) Coffee filter or cheesecloth Rubber band Dirty water (make your own with soil, food coloring, etc.) Scissors Clear cups or jars for filtered …
