Alpha science classroom: exploring the mystery of the length of skis

The arrival of winter brings children's favorite snowflakes but also brings a lot of fun to children watching the Winter Olympics or other winter sports events, you may wonder why the skis are so long. But what about kids who wonder why they put boards under the soles of their shoes? Today, the alpha science classroom is exploring the mystery of the length of skis with kids by doing this kid's physical science experiment activity to discover why skis glide easily in the snow and let kids find out the answer in a fun kids science experiments activity!

Alpha science classroom: exploring the mystery of the length of skis, required materials

• Baking pan or another container with sides at least one inch high

• Flour

• A figure or doll that can stand upright, preferably a heavier one (and allows for skis to be temporarily glued to its feet)

• Cardboard

• Scissors

• School glue

Alpha science classroom: exploring the mystery of the length of skis Steps

Step 1: First, children make skis for their action figure by cutting out two identical rectangles from cardboard. The length should be a little shorter than the height of the figure.

Step 2: Pour about ¾ inch deep of flour on the plate. Use the edge of one piece of cardboard to carefully sweep over the top layer to create a flat surface.

Step 3: Imagine for the children that the flour is fluffy snow. What would happen if you stepped on this fluffy snow? Would the same thing happen when you placed your action figure there?

Step 4: Children place their action figures on the floor. Pick it up again and observe. Were your predictions correct? Do you see footprints on the floor?

Step 5: Do the children think it is easy to get your action figure to sink into the flour? Why? Put your action figure back on the flour - but this time press it down. Was your prediction correct?

Step 6: Children pick up your action figure and let it stand on the floor without pressing it in. Try hitting it to the side, then the front and back. Was it easy to get your action figure to fall down?

Step 7: Kids dust off the action figure's feet and glue the ski to its feet, about halfway along the length of the ski. Let the glue dry.

Step 8: What do you think would be different if we did the previous test with the action figure with the skis?

Use the edge of a piece of cardboard to smooth out the flour again.

Step 9: What type of footprints will the children leave with the action figure with skis? Are they deeper or lighter than those of the figure without skis?

Step 10: Is it easier or harder for the children to get the action figure to sink into the flour? Why is this beneficial when you want to skate on snow?

Step 11: Can you easily knock over an action figure with skis on it? Is it as easy to knock it to the front or back as it is to knock it to the side? Why would that be?

Alpha science classroom: exploring the mystery of the length of skis, Science Principles

Alpha Science Classroom I wonder if the kids have noticed if the footprints get shallower when the action figures are on skis? Is it harder to push the action figure into the powder compared to when it is not wearing skis and is it harder to push it to the front and back? This is to be expected.

Skis create a large contact area between the skier and the snow. As a result, the skier's weight - or the degree to which gravity is pulling on him - is spread over a much larger area. Because there is less pressure on the skier per square inch of snow, he or she can glide over the snow rather than sink into it. You can also feel this when you push your action figure into the powder. Without skis, this is easy. With skis, you have the power distributed over a large area. It's much harder to make the action figure sink into the powder.

Skis also help with stability. When you have a larger contact area, it's easier to keep your balance. Think about it: when you stand on your toes, you tend to fall forward or backward; it's easier to stand on your flat feet. Similarly, skis extend your feet, making it harder to fall forward or backward, but because the skis barely extend your feet to the side, skiers still tend to fall to the side.

We hope that children will learn about the science and fun of snowboarding through this fun children's physical science experiment so that the process of learning to snowboard will become easy for children. Finally, alpha science classroom believes that it can help kids understand the basic science about physics through this kids science experiment so that kids can learn and grow in a happy atmosphere and become the coolest scientists.

Alpha science toys create a series of fun kids' physics science experiment kits for kids to help them learn fun physics and become the smartest and happiest little scientists through different physical phenomena and principles.