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   Scientific Investigation Five Steps used in Scientific Investigation A scientific investigation is a process involving five steps, which are designed to confirm an idea or opinion put forward based on a question to be answered. This investigation will possibly provide new knowledge or discoveries, correct a previous finding, or further enhance an earlier experiment. Now you can take an in-depth look at each step. 1. Ask a question There must be a question that needs an answer. Based on the situation presented there is something to find out, which may either be what, how, when, where, or why. It must be noted that investigations vary depending on the scientific question. A typical question could be: “What causes a dog to bark?” Equipping yourself with knowledge on the subject area, and looking at similar investigations on the topic will prove useful. This provides the background to move on to the next step. 2. Make a hypothesis Based on your pre...

  describing motion    Motion means movement. In everyday life, we see some objects at rest and some others in motion. Rotation and revolution of Earth, continuous expansion of the Universe, ball rolling down the hill, a train traveling along the tracks, etc are all examples of motion. Motion is a continuous change in the position of an object concerning a stationary object. It is described in terms of displacement, distance, velocity, acceleration, time, and speed. Motion: A  body is said to be in motion when it changes its position concerning a fixed reference point called the origin. Uniform Motion is a motion in which equal distance is covered in equal time intervals. Non- Uniform Motion is a motion in which unequal distance is covered in equal intervals of time. Distance : It is the actual path traveled by an object from its initial position to the final position. It is a scalar quantity. It has the only magnitude without direction Displacement: It...