hands on science activities for middle school

Hold a bottle cork in one hand firmly and cut a thin slice with the help of a blade. Place the section in a drop of water on a glass slide and observe under a microscope. You will find cells, which are box-like and closely packed togethe..

Hold a pin erect on a pile of papers. Keep another pin next to it upside down in such a way that its flat head rests on the pile. Press both these pins down by placing a flat object such as duster. We observe that pin which is erect pierces through the pile of paper..

Metals such as iron, zinc, lead, copper, etc., are in the middle of the reactivity series. These are moderately reactive metals and are usually present as sulphides or carbonates. A metal is obtained from its ore by the processes of reduction or by electrolysis. In the reduction process,..

Fleming's left hand rule helps us to predict the movement of a current carrying conductor placed in a magnetic field. According to this rule, extend the thumb, forefinger, and the middle finger of the left hand in such a way that all the three are mutually perpen..

Extend the thumb, forefinger, and the middle finger of the left hand in such a way that all the three are mutually perpendicular to each another. If the forefinger points in the direction of the magnetic field and the middle finger in the direction of the current, the..

The direction of induced current can be determined by using Fleming's Right Hand Rule. Stretch the forefinger, the middle finger and the thumb of the right hand, such that they are mutually perpendicular to each other. If forefinger indicates the direction of the ..

Applications of Newton's Second Law of Motion - In a cricket match a fielder moves his arms back while trying to catch a cricket ball because if he tries to stop the fast moving ball suddenly then the speed decreases to zero in a very short time. Therefore the retardation of the ball will be very l..

. Traditional methods of surveillance and policing had led to a 'complete alienation of the people from the administration', resulting in frequent clashes between forest officials and villagers. Forest and land related conflicts in the region were also a major factor in fuelling the militant peasan..

. Even the bacteria which cause deadly diseases and food poisoning on one hand help in aiding digestion produce dairy products like milk and yogurt (curds) and help in decomposing huge amounts of waste and dead matter, fertilizing the soil with nitrogen. One of the main aims of conservati..