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Slippery or Sticky Ice Experiment

BySarah McClelland Updated on

Have you ever wondered if ice is always slippery or if it can be sticky? This slippery or sticky ice experiment will help kids explore how temperature, pressure, and surface texture affect ice’s slipperiness. Get ready to slide into some cool science!

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Is Ice Always Slippery?

Ice is slippery because of a thin water layer on its surface. But is it always slippery? This depends on the ice’s temperature, surface texture, and how much pressure or friction is applied. Kids will love testing these factors to discover when ice is most and least slippery!

What is Sticky Ice?

Ice being sticky is the opposite of it being slippery. Slippery ice has a thin water layer that helps things slide, but sticky ice happens when it’s so cold that it freezes the water on your skin instead of letting it melt. Let’s explore why!

This cool science shows how ice can behave surprisingly depending on temperature, moisture, and conditions. Is it sticky, slippery, or something in between? Time to test and find out!

Grade Level: This experiment is great for grades 3-6, but younger kids can also participate with extra guidance.

Materials:

  • Ice cubes (at least 5-6)
  • A smooth surface (like a tray or cutting board)
  • A rough surface (like sandpaper or a textured plastic mat)
  • Freezer-safe thermometer (optional)
  • Small weights (like coins)
  • Stopwatch
  • Observation worksheet (below)

How to Set Up a Sticky Ice Experiment

💡 Going Ice Fishing indoors is also an alternative way to show sticky ice!

Scientific Method

Question: Is ice always slippery? What factors affect its slipperiness?

Hypothesis: If ice has a higher temperature or is on a smooth surface, it will be more slippery because the thin water layer will form more easily.

Test Ice Temperature:

  • Take three ice cubes: keep one very cold (from the freezer), one at room temperature, and one slightly warmed, and place on trays or plates (not paper).
  • Test each cube by gently pushing the ice cube with your finger or slightly tilting the surface to see how easily the ice cube slides.
  • Record observations about slipperiness.

Test Surface Texture:

  • Place an ice cube on a smooth surface (tray) and another on a rough surface (sandpaper on tray).
  • Use both push (gently with finger) and tilt methods (tilt surface slightly) to observe how the ice behaves on each surface.
  • Record which surface makes the ice slide easier.
  • You can try out a variety of surfaces on the tray, such as parchment paper, wax paper, silicone baking mat, aluminum foil, or even a wooden cutting board

Test Pressure:

  • Place a small weight (like coins) on one ice cube and slide it on a smooth surface.
  • Compare it to an ice cube without any added weight using the same methods.
  • Record the differences in slipperiness.

Observation and Data Collection:

  • Write down which ice cube slid the farthest or fastest in each test.
  • Note if certain conditions made the ice stick slide or not.
  • Use a thermometer to check if temperature differences affect slipperiness.

Results:

  • Analyze which factor (temperature, texture, or pressure) made the ice most slippery.
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Is Ice Slippery, or Is Ice Sticky?

Ice isn’t always slippery, and it’s not always sticky either! Ice feels slippery or sticky depending on temperature, surface texture, and pressure.

Slippery Ice:

  • Warmer ice and smooth surfaces create a thin water layer that makes ice slippery and easy to slide.
  • Rough surfaces or very cold ice reduce slipperiness by disrupting or preventing the water layer from forming.
  • Slipper ice = less friction

Sticky Ice:

  • Ice feels sticky when it’s very cold and freezes the moisture on your skin. This frozen layer creates a bond between the ice and your skin, making it feel sticky.
  • Sticky ice is more noticeable if your skin is wet, as the water freezes faster.
  • Stickier ice = more friction

Tips and Tricks

  • Start with a fun question: “Why do ice rinks feel slippery, but frozen ground doesn’t?” Share real-world examples, such as penguins walking on ice or curling teams using special shoes.
  • Encourage kids to use descriptive language as they observe (“The ice felt sticky,” or “It slid quickly across the smooth tray”). Younger kids can draw pictures of their observations.
  • Discuss Real-World Applications: Relate the experiment to real-life situations, such as walking on icy sidewalks, ice sports, or how salt is used to reduce slipperiness in winter.
  • Simplify for Younger Kids: Focus on one test (like surface texture) and let them playfully experiment with sliding ice cubes. Use toy cars or figurines for added fun.
  • Add Challenges for Older Students: Introduce variables like adding salt to the ice or testing different materials. Include math by measuring and comparing sliding distances.
  • Encourage Collaboration: Let students work in pairs or small groups to test different factors and then share their results. This fosters teamwork and communication skills.
  • Extend Learning Beyond the Experiment: Provide books or videos about winter weather, states of matter, or the science of ice skating. Let them brainstorm follow-up experiments.

More Ways to Explore the Sticky Ice Experiment

  • Friction Exploration: Test sliding ice cubes on other materials (wood, plastic, metal) to compare slipperiness.
  • Angle Test: Gradually increase the tilt of the tray. Does a steeper angle make the ice slide differently?
  • Real-Life Connection: Discuss why ice skates or sleds work well on ice and how this connects to your experiment.

Related Science Activities:

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Helpful Science Resources

Here are a few resources to help you introduce science more effectively to your kids or students and feel confident presenting materials. You’ll find helpful free printables throughout.

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