1. Make snowflakes under a microscope: Take freshly fallen snow and examine it under a microscope. Observe the unique crystal structures of snowflakes up close.
2. Conduct the ice cube experiment: Fill two identical cups with water, add food coloring to one, and observe which one freezes faster. This experiment demonstrates the effects of impurities on the freezing point.
3. Build an igloo: Use compacted snow to create a small igloo. Learn about snow’s insulating properties and discover how indigenous communities utilize igloos for shelter.
4. Explore the science of frost: Examine how frost forms on surfaces during the winter. Experiment with different temperatures and humidity levels to observe variations in frost patterns.
5. Make frosty slime: Combine white glue, liquid starch, and glitter to create a slime that looks like frost. Explore the properties of polymers and how they interact with each other.
6. Study the states of matter by making ice cream: Learn about the changes in states of matter by making homemade ice cream. Observe how liquid cream turns into a solid through freezing.
7. Investigate the physics of sledding: Analyze the forces and friction involved in sledding. Test different materials and surface conditions to determine the factors that affect speed and distance.
8. Create a winter-themed volcano: Build a volcano using snow, baking soda, vinegar, and food coloring. Observe the chemical reaction and eruption, exploring the concepts of acids and bases.
9. Experiment with snow density: Measure the density of different types of snow, such as fresh versus compacted snow. Discover how variations in density affect the properties of snow.
10. Study winter constellations: Go stargazing on a clear winter night and identify constellations specific to the winter season. Learn about the mythology and science behind these celestial formations.
11. Investigate the insulating properties of snow: Compare the rate of heat loss between objects placed on snow and those placed on other surfaces, such as pavement or grass.
12. Create hot ice sculptures: Observe the process of sodium acetate crystallization and mold the resulting hot ice into various shapes. Explore the principles of exothermic reactions.
13. Perform the frozen bubbles experiment: Blow bubbles in freezing temperatures and observe how they freeze in mid-air. Learn about surface tension and the science of bubbles.
14. Explore the concept of snowflakes and symmetry: Study the unique symmetry of snowflakes and create paper snowflake designs. Learn about crystalline structures and symmetry in nature.
15. Engineer a snowball launcher: Build a device that can launch snowballs efficiently. Experiment with different designs and launch angles to optimize distance and accuracy.
16. Investigate the effects of salt on ice: Explore how salt affects the melting rate of ice. Test different concentrations of salt to understand the principles of freezing point depression.
17. Study animal adaptations in winter: Research how various animals survive and adapt to the winter season. Learn about hibernation, migration, and insulation techniques.

18. Experiment with ice crystallization: Use supercooled water and various freezing objects to observe the formation of ice crystals. Explore the concept of nucleation and crystal growth.