Identifying factors influencing the fluid friction in Friction – Class 8 Science Experiment

Chapter Name: Friction

Activity Name: Identifying factors influencing the fluid friction in Friction

Activity Description:

Identifying factors influencing the fluid friction in Friction - Class 8 Science Experiment

The experiment aims to investigate the factors influencing fluid friction by observing the resistance experienced by a hand moving in water in different orientations.

Required Items:

  1. Tub of water

Step by Step Procedure:

  1. Fill the tub with water.
  2. Place your hand flat in the water with fingers stretched out.
  3. Attempt to move your hand up and down (in the direction of the stretched fingers) through the water and observe the level of drag or resistance experienced.
  4. Now, try moving your hand to and fro (perpendicular to the plane of the hand) through the water and note the level of drag experienced.
  5. Compare the observations to identify in which orientation (up and down or to and fro) your hand experiences more drag.

Experiment Observations:

  1. The hand experiences more drag when moving to and fro (perpendicular to the plane of the hand) through the water.
  2. Less drag is felt when moving up and down (in the direction of the stretched fingers).


  1. Ensure the water level in the tub is sufficient to cover your hand adequately.
  2. Be cautious not to splash water outside the tub during the experiment.

Lesson Learnt from Experiment:

The orientation of an object in a fluid significantly affects the frictional force it experiences. Moving an object through a fluid in the direction perpendicular to its surface (like to and fro motion) results in higher drag compared to moving it parallel to the surface (like up and down motion). This observation confirms that frictional force in a fluid depends on the object’s shape and its motion relative to the fluid.

Science Experiment Kits for Kids

Photo Title Price Buy
Einstein Box Junior...image Einstein Box Junior Science Gift Set | 2-in-1 Set of My First Science Kit & Slime Kit for 4-6-8 Year Olds| Birthday Gift for Boys & Girls ₹1,199.00
ButterflyEdufields 20+ Science...image ButterflyEdufields 20+ Science Kit For Kids | STEM Projects birthday gift For Boys and Girls Ages 7-8-10-12 |DIY Educational & Learning Experiment Toys for 7 To 12 Year Olds | Build 20+ Motor Machines ₹1,614.05
The Little Ones...image The Little Ones Science Kit - Science experiment kit for kids 6-8-10-12 years old,educational learning toys,Best gift for boys&girls,chemistry kit,science project[Complete science kit- 100+experiment]
WitBlox AI Artificial...image WitBlox AI Artificial Intelligence Robotic Science Kit for 101+ Project 137 Part 8 Yrs+, Interlocking Bricks, Electronic Sensor & Circuits to create Logic 2 Free Live Classes Gift Toy for Boys & Girls ₹3,699.00
Avishkaar Robotics Advanced...image Avishkaar Robotics Advanced Kit|150-In-1 DIY Stem Metal Kit|Multicolor|150+ Parts|Learn Robotics|Coding & Mechanical Design|for Kids Aged 10-14|Made in India|Educational DIY Stem Kit|Made in India ₹10,199.00
My Science Lab...image My Science Lab Ultimate Science Experiment Kit for Kids Age 6-14 | STEM Toys | Physics Kit Set | Science & Fun 5-in-1 Projects | School Science Kit | Best Educational Birthday Gift Toys for Boys and Girls ₹1,199.00

Similar Posts

Leave a Reply

Your email address will not be published. Required fields are marked *