This easy sundial is a great project for kids on a summer day. The tools required are very simple – you probably already have everything you need at home. The items required are crayons/markers, a paper plate, a sharpened pencil, pushpins, a ruler and a straight plastic straw.

What materials do you need to make a sundial?

1. Straight stick and stones for hour markers.
2. A paper plate, straight stick and markers (optional: playdough)
3. A tree slice, stick and pencil or piece of chalk.

How are sundials made?

A sundial contains a gnomon, or a thin rod, that casts a shadow onto a platform etched with different times. As the sun changes relative positions over the course of a day, the rod's shadows change as well, thus reflecting the change in time.

How do you make a sundial out of wood?

1. Step 1: Get Wood. Get a sturdy piece of Plywood. ...
2. Step 2: Cut Out a Circle. Cut a circle out of the wood. ...
3. Step 3: Glue to Stand. With another piece of wood, cut it at the angle of your latitude. ...
4. Step 4: Add Gnomon. ...
5. Step 5: Add Time Lines. ...
6. Step 6: Stain. ...
7. Step 7: Paint. ...
8. Step 8: Place Sundial.

Do sundials need to face north?

A sundial at a particular latitude in one hemisphere must be reversed for use at the opposite latitude in the other hemisphere. ... The gnomon, set to the correct latitude, has to point to the true South in the Southern hemisphere as in the Northern Hemisphere it has to point to the true North.

DIY Sundial

How do you make a sand sundial?

1. Find a sunny spot and push the stick vertically straight into the grass or earth. If your backyard doesn't have any grass or earth, fill a small bucket with sand and place your stick into the bucket.
2. Start in the morning when the sun is up. ...
3. By the end of the day your sundial will be complete.

How do you make a simple sundial?

Take your plate and plastic straw outside. Put the plate on the ground and poke the straw through the hole you made. Slant the straw slightly toward the line you drew. Carefully rotate the plate so the shadow of the straw lines up with the line you drew.

What is sundial gnomon?

A gnomon (/ˈnoʊˌmɒn, -mən/; from Greek γνώμων, gnōmōn, literally: "one that knows or examines") is the part of a sundial that casts a shadow. The term is used for a variety of purposes in mathematics and other fields.

How do you make a sundial UK?

Fold out the two long straight flaps so that they are in opposite directions. Glue together the two triangles. Draw a semicircle on the cardboard base. In the centre of the semicircle, with the thin point of the triangle at the edge of the card, glue the sundial to the base.

How do you set up a sundial compass?

Use a compass or look for the North Star at night to find true north. Then, rotate the face of your sundial until the gnomon, or the pin of the sundial, is pointing straight north. The 12:00 noon notation is aligned with the gnomon, so it will be pointing north as well.

What is the angle of a gnomon?

The gnomon of the vertical sundial makes an angle of 90°–L with the vertical (that is, an angle L with the horizontal), as shown in the side view in Figure 5. In the southern hemisphere, the vertical dial is north-facing. Unlike the equatorial dial, the hour angles are not equally spaced.

How do you find true north without a compass?

1. Stick shadow: Place a stick in the ground vertically. ...
2. North star: Look up. ...
3. Southern Cross: If you're in the southern hemisphere, find the Southern Cross. ...
4. Orion's Belt: Find Orion, and then the three bright stars of its belt.

How do I make a cardboard sundial?

1. Trace the round bottom object with your black marker directly onto your cardboard. ...
2. Cut the circle out of your cardboard with your box cutter.
3. Using your ruler, find the center of your circle and mark it with a dot.

How do you make a sundial science project?

1. First thing in the morning, place the board on a flat surface in a spot that receives sun all day long.
2. Make sure that the board cannot move by placing a couple of rocks to weigh it down if the weather is windy.
3. Hammer the nail as close to the center of the board as you can.

What is a gnomon made of?

To make a gnomon, you will need a straight piece of wood for the base (I used a redwood 1 x 3 by 22 in. long), a length of metal rod (mine was 1/8 in. diameter brass rod about 10 in. long), a piece of millimeter paper, a small spirit level, and some household cement.

What is gnomon used for?

gnomon, device originally meant as an instrument for calculating the time. In its most simple form it seems to have been a rod placed vertically on a plane surface, later upon the surface of a hemisphere.