A crescographis a device for measuring growth in plants. It was invented in the early 20th century by Sir Jagdish Chandra Bose - an Indian polymath, physicist, biologist, botanist, archaeologist.
dial indicator
There is no instrument in world which measure how small an object is but instruments measure how large an object is .
You should use a tape measure, ruler, or meter stick. The measurements should be in inches, feet, or centimeters.
Blue, study island
The instrument used to measure the diameter of spherical objects is called calipers.
The ceilometer instrument.
A tape measure.
.
it would be a ruler
Balanced .
This is a testable observation. Hypothesis: Plants that are closer to windows grow faster than when they are in the center of the room. Null Hypothesis: The location of a plant in a room makes no difference to the rate of growth in a plant. Experiment Approach: I would take two of the same plants and water them the same much. One I would keep on a window sill and one I would place on a coffee table in the middle of the living room. Dependent variable: Speed of growth Independent variable: Putting the plant on the table Control: plant on the window sill How I would collect my data: Measure the growth of plant weekly How I would present my data: Present the data in a linear graph How I would analyze my data: I will compare the rate of growth from both plants. This is a testable observation. Hypothesis: Plants that are closer to windows grow faster than when they are in the center of the room. Null Hypothesis: The location of a plant in a room makes no difference to the rate of growth in a plant. Experiment Approach: I would take two of the same plants and water them the same much. One I would keep on a window sill and one I would place on a coffee table in the middle of the living room. Dependent variable: Speed of growth Independent variable: Putting the plant on the table Control: plant on the window sill How I would collect my data: Measure the growth of plant weekly How I would present my data: Present the data in a linear graph How I would analyze my data: I will compare the rate of growth from both plants. This is a testable observation. Hypothesis: Plants that are closer to windows grow faster than when they are in the center of the room. Null Hypothesis: The location of a plant in a room makes no difference to the rate of growth in a plant. Experiment Approach: I would take two of the same plants and water them the same much. One I would keep on a window sill and one I would place on a coffee table in the middle of the living room. Dependent variable: Speed of growth Independent variable: Putting the plant on the table Control: plant on the window sill How I would collect my data: Measure the growth of plant weekly How I would present my data: Present the data in a linear graph How I would analyze my data: I will compare the rate of growth from both plants.
barometer
liquid
A voltmeter or a multi-meter.
anemometer
A thermometer is sufficient.
"ammeter"