Surface tension is a fascinating property of liquid. There is a thin layer of liquid molecules on its surface that can hold small objects like a needle. The surface tension of water changes quickly …

Dec 26, 2018 · From what I understand, for the needle to float without sinking, some force has to balance its weight. Since no part of the needle is under the water, buoyant force can be ruled out.

Jul 12, 2025 · Water has a much stronger surface tension than alcohol, which is why a needle can float on water but not on alcohol. Water molecules are highly polar, which means they have a …

However a needle can be made to float on the water if it does not break the surface. The surface of water acts like a stretched skin (trampoline) and the needle sits on it. If the needle is too …

This video demonstrates surface tension of water. Surface tension prevents the needle from slipping into the water.

Sep 16, 2019 · Here's a neat experiment you can try at home. All you need is a glass of water, a sewing needle, and a small slip of paper. Try This! Place the sewing needle on the little slip of …

Dec 26, 2025 · For this activity, you’ll need a shallow dish filled with water, a sewing needle, and a dish soap. Start by filling a bowl with water. Using tweezers, carefully place a sewing needle …

Sep 8, 2016 · True, a needle can float on water due to surface tension that counteracts its weight. Surface tension allows the needle to rest on the water's surface without breaking through, …

Answer: The needle floats on water due to its high surface tension, resulting from a strong cohesive force between water molecules. This, combined with a strong adhesive force …

Aug 27, 2025 · Have you ever seen a needle float on water? 🤔 In this amazing science experiment, we’ll show you how it’s possible using just water and a needle! Learn the science behind …