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Science Project: The Strength of Sand

How strong could a bunch of a teeny-tiny particles be? They’re so small how could there any strength to them. Well, this science project will redefine the old phrase, strength in numbers. Test how strong sand can be and fool your friends and maybe even teachers!


  • Cardboard tube from a roll of paper towel
  • Sand can be found at craft or garden stores if not close to beach or desert
  • Sheet of tissue paper
  • Rubber bands
  • Scissors
  • Stick - dowel rod approximately 1 foot in length or a drumstick works well


  1. Cut the tissue into 2 squares with 8 inch sides.
  2. Place the tissue square over one end of the cardboard tube and secure it there with a rubber band twisted around the tissue and tube.
  3. Get a friend to take the stick and see if they can puncture a hole in the tissue paper that’s covering the end of the tube. Should be pretty easy to do so.
  4. Replace the square of tissue paper with a new intact one and secure it the same way you did the last, but this time fill the tube ¾’s of the way up with sand.
  5. Now have your friend again try and puncture a hole in the tissue paper. What’s your hypothesis of what will happen? Are they going to get sand all over the floor or will the force of sand stymie them?

So Much Sand! How Much Sand Is There in the World?Courtesy of projects.math.arizona.edu

What should happen is that the sand in the tube will prevent the stick from piercing the tissue paper. When the stick pushes against the sand, the sand particles respond by pushing against the walls of the cardboard tube much like a plug in the drain of a tub. So even that little amount of sand makes the tissue paper a nearly impenetrable surface.

Gives you a whole new perspective on sand castles, huh? Maybe they are secure fortresses after all!

Have your say!

What do you think would happen if the sand was wet sand? Think about how a sand castle feels and holds it’s shape. How would wet sand change this experiment? Would the sand be stronger or weaker? Share your hypothesis in the comment’s section below!



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How do you feel about sand at the beach?

  • I love the warm sand at the beach! I could lay in it all day.
  • I hate sand so much! I don't like going to the beach and getting sand in everything! Ick!
  • My favorite thing to do at the beach is build sand castles so I guess I like sand.
  • I don't mind the sand, unless it ends up in my mouth- ugg that's so gross!

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genius@23 posted in General:
@Iris- Thank youuu (: and also for this lovely note  [s:sm3/1jw1] [s:sm3/1jw1] You mean a lot to me Surupa. I'm glad to have met someone like you ^^ @DavidBecker Ahaha your typical displeasing yet amazing humour xD THANK YOUUU ^_^ @Abbergrl Omg I don't even know how to react to this lovely paragraph. You've been a special friend to me too 'cause you're so amazing, cheerful and lovely and a really cute little kid LOL xD And thanks a lot  [s:sm3/1jw1] [s:sm3/1jw1]
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AlphaT posted in Debating:
In code it's gif, in formal writing it's GIF. 
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Abbergrl posted in General:
always* not ays.. and I put a special typo for you too lol.
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Abbergrl posted in General:
AASTHA, HAPPY BIRTHDAY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!I know that I am probably nothing, but you are a very special friend and I will never forget you. I will always think of many people even after I leave kw and become old, this for sure :p and you'll definitely be one of them. You're awesome and don't let temptations lure you on the wrong path. ays be happy and try to make the most of this day, however terrible or whatever it seems to you. I'd tell anyone that.And I will pray for you, that you enjoy your day and be happy in life. I love ya soo much. Now where is that stupid heart emojiiiiiiiii :pByeeeeeeeee and hav fun.. :p Can't I say something else? I keep repeating this.
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If I could wish Aastha a happy birthday in a paragraph, it would be awesome. But, she's such an awesome friend that, it would be a sin to just confine it to a paragraph. And I'm not writing this because I'm too lazy to type LOL. Happy Birthday Aastha. :D
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