How do you make a simple barometer?

Method 2 of 2: Building a Water Barometer

  1. Cut the top off of a plastic bottle.
  2. Set a ruler inside the bottle.
  3. Insert clean tubing.
  4. Dye some water your favorite color and pour some in.
  5. Suck some of the water into the tube.
  6. Seal the tubing with something tacky.
  7. Mark the water line on the outside of the bottle.

How does a homemade barometer work?

If the pressure of the air outside the jar is higher than inside (high pressure), it will push down on the balloon and the balloon lid will sink and the straw will point up. If the air pressure outside the jar is lower than inside (low pressure), the balloon will swell outwards and the straw will point down.

How do you make a paper barometer?

Make sure the end of the straw ends in the center. On a piece of card draw a sunshine towards the top and a rain cloud towards the bottom. Mark the paper in the middle where the straw currently rests. Now the children can step back and observe the barometer over time.

What is simple barometer explain with diagram?

A simple barometer consists of a long glass tube (closed at one end, open at the other) filled with mercury and turned upside down into a container of mercury. As air pressure decreases, more of the mercury drains from the tube. So the level of mercury in the tube provides a precise measure of air pressure.

How do you make a homemade weather station?


  1. Have an adult punch a hole in the side of the bottle about an inch from the bottom.
  2. Cut the tips off the shoestring.
  3. Cut a small piece of packing tape.
  4. Push the shoelace through the hole.
  5. Wait five to 10 minutes, and read both thermometers.
  6. Keep a record of the daily humidity for a few weeks.

What is a simple barometer?

What is barometer example?

The definition of a barometer is a device that measures the pressure of the atmosphere as an aid to predicting weather. A device that shows the pressure of the air is an example of a barometer.

How do you make a barometer?

Making an Aneroid Barometer Cut the neck off of a balloon. Stretch the balloon over the top of a jar. Glue the straw on top of the jar. Attach a pointer. Stand some stiff paper next to the pointer. Record changes in the pointer’s position. Interpret the results.

How do you set a new barometer?

Setting the Barometer Buy a barometer. Obtain a local reading of barometric pressure. Set the indicator hand on your barometer. Hang the barometer in a location that works for you. Check occasionally to be sure that your barometer works properly.

How does barometer work for kids?

What is a Barometer Facts for Kids Video. A barometer is a scientific instrument used by meteorologists so that they can keep a track of air pressure. The word ‘barometer’ is formed by combining two Greek words meant ‘measuring weight’. This device is used to measure changes in pressure within the air so that weather forecasts can be made.