Investigating the effects of different liquids on plant growth: Materials needed - different liquids (water, juice, soda), potted plants, measuring cups, watering can.

Testing the strength of different materials: Materials needed - various materials (paper, plastic, metal, wood), weights or books, ruler or measuring tape.

Exploring the properties of magnets: Materials needed - different magnets, various objects (paperclips, coins, nails), magnet wand or bar.

Investigating the effects of temperature on the rate of ice melting: Materials needed - ice cubes, thermometer, different containers (plastic cup, metal cup), timer or stopwatch.

Testing the buoyancy of different objects: Materials needed - various objects (cork, stone, plastic toy), container of water, ruler or measuring tape.

Investigating the effects of light on plant growth: Materials needed - potted plants, different light sources (natural sunlight, lamp), timer or stopwatch.

Exploring the properties of different rocks: Materials needed - various rocks, magnifying glass or microscope, identification guide or chart.

Investigating the effects of different types of soil on plant growth: Materials needed - different types of soil (sand, clay, potting soil), potted plants, measuring cups, watering can.

Testing the conductivity of different materials: Materials needed - various materials (metal, plastic, wood), battery, light bulb, wires.

Investigating the effects of different liquids on the erosion of rocks: Materials needed - different liquids (water, vinegar, lemon juice), rocks, containers, timer or stopwatch.