To get your child excited about kindergarten: With both of my kids, we made registration day a big day! We took pictures, talked it up and made it fun. Once we signed up, we talked about how the school, our base school, was their school. We played on the playground.
The use of a clinometer to measure tree height. A clinometer is a fairly simple instrument which is used to measure the angle of a slope. By using the principles of trigonometry, the height of tall objects can be calculated from the angles measured. A clinometer can easily be made from a large protractor. A narrow piece of wood should be glued to the base of the protractor to act as a sighting line. A weighted plumb line is then fastened to the mid point of the base line of the protractor.
A pH meter is a scientific instrument that measures the hydrogen-ion activity in water-based solutions, indicating its acidity or alkalinity expressed as pH. The pH meter measures the difference in electrical potential between a pH electrode and a reference electrode, and so the pH meter is sometimes referred to as a potentiometric pH meter. The difference in electrical potential relates to the acidity or pH of the solution. The pH meter is used in many applications ranging from laboratory experimentation to quality control.