Recently at school, they told us we had to help the kids make a seismograph. I really had no idea how to do that, and I thought it was pretty interesting, even though I wasn’t exactly thrilled about the idea of doing it, in fact, I was scared because it sounded like it would be really hard, but once you have the necessary materials, you realize it’s very simple. For this activity, we’ll just need a cardboard box, thick string, a plastic cup, scissors, tape, a white sheet of paper, MARKER and rocks or coins.
I took a small shoebox and cut two holes in the top with a pair of scissors; we'll thread the string through these holes. After threading the string through, we took a plastic cup and cut two holes in the sides.
Then I wrapped the string around the box and through the glass, tying several knots to keep everything in place; the glass ended up hanging like a “swing” and should be fairly close to the base. Next, we drilled another hole in the glass, but this time in the bottom, so we could insert the marker. The hole should be big enough for the marker to fit inside but not so big that it falls out. Then we had to add some weight to keep the glass standing straight and upright. Since we don’t have coins in my country, my husband and son went out to collect small stones to hold the glass in place.
Once it looks like this, it's time to cut 4 strips of paper, all the same size, to make a long strip of paper, which we'll tape together at each end with a little tape. This strip of paper will show us the seismograph's reading once it's up and running.
To insert the paper, we'll make two slits in the bottom of the box and thread the paper through them. To make the seismograph work, we just need to simulate an earthquake on the table and move the paper manually so that the movement is recorded on the sheet.
Me alivia haber terminado esta actividad porque me tenia muy preocupada, a penas escuche que mi hijo me dijo: "Tenemos que hacer un sismografo" entré en pánico, pensé que seria muy dificil, ya que a veces mandan coasas demasiado raras de la escuela, pero fue bastante facil, si tuviera la oportunidad de hacerlo de nuevo arreglaria muchos detalles que pudieron hacerse de mejor manera.
I'm relieved to have finished this project because it had me really worried. As soon as I heard my son say, “We have to make a seismograph,” I panicked. I thought it would be really hard, since the school sometimes assigns really weird projects, but it turned out to be pretty easy. If I had the chance to do it again, I'd fix a lot of details that could have been done better.