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How to Make a Rain Gauge out of a Plastic Bottle

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Update time : 2019-09-24 19:01:08

A Rain Gauge is an implement used to record the quantity of rainfall. A stupid Rain Gauge can be built at family using a flexible bottle and a ruler. full you dine to do after that is calibrate the standard accordingly that you can admit exact readings. This can be done by adults, besides it is a large science activity although kids, too.

1. dwelling the Instrument

1) leather the label off of a flexible bottle. joint choices are a 500 ml (16.9  fl oz) drinking bottle or a 2 L (67.6  fl oz) bottle. no affair which you choose, leather or abbreviate the label off of the bottle. This will allow you to clearly bark on inside the bottle although vigorous although create marks at the exterior of it.

2) abbreviate the climax off of your bottle. employ a connect of scissors or a utility knife to abbreviate the climax off of the bottle. abbreviate exact where the sides commence to tip inside although the mouth of the bottle. This will forsake you the most room at your Rain Gauge and supply you an effective funnel.
  • Have an adult help or control this step.

3) employ the climax to create a funnel. admit the divide you abbreviate off the bottle, flip it upside down, and lay it help at climax of the bottle. This to forsake the climax of the bottle pointing inside the bottle (make sure the cap is off). Now, water can effectively jog into the gauge. Tape your funnel at lay with packing tape.

2. Calibrating the Instrument

1) Add ⁄2 inch (1.3 cm) of sand to the bottom of the bottle. Adding sand to the bottom of the bottle will supply weight to get the bottle from tipping over. It will also award you a even surface to criterion water (the bottoms of most bottles are uneven).
  • You can employ any sand. if you amass it along a river beach or at the beach, create sure it’s liberate of rubbish although weeds, sticks, shells, or rocks. Or, you can buy sand at your local hardware store.

2) Saturate the sand with water. Add impartial enough water to cover the sand completely. The quantity of water needed to fill full of the holes among sand particles and cover the climax of the sand is called the saturation point. employ a marker to sign the saturation point at the exterior of your bottle.

3) create a ruler at the bottle. From the saturation mark, criterion up the bottle and create marks each 1 inch (2.5 cm). You can also create marks at among these lines to title fractions of an inch (⁄2 inch (1.3 cm), ⁄4 inch (0.64 cm), ⁄8 inch (0.32 cm), etc.). lay clay tape at your markings to defend them from weather.
  • You can also employ clay tape to tape a ruler to the bottle.
  • Alternatively, you could sign the bottle at centimeters or millimeters.

3. Using the Instrument

1) lay the bottle at a hole outside. Usually, rainfall is measured at base level. This method that you will need to dig a hole impartial deep enough to lay your bottle in. The climax of the bottle to be blush with the base almost it.

2) rent the bottle amass rain. forsake the bottle uncovered. when it rains, rainwater will be funneled into the bottle. This will allow you to record the quantity of rain that fell at that special day.

3) Record your readings. shift the bottle from the hole and see how much water has collected. Write down the quantity of rainfall that you record. This way, you can lay the Rain Gauge help at the same lay and amass water from the next rain. at time, you can map how much rainfall your district has received.
  • Note that these readings will differ depending at the size bottle you use. Any bottle will differ from the officer Rain Gauge used by meteorologists.