The beach is where ocean water and the shore meet. It's a place where you can swim in ocean water and walk on ocean land. It's a place where you can see the ocean water move in waves. It's place where you can watch the tides rise and fall. It's a place where you can touch, see or hear ocean living things. It's a place where you can watch, hear and smell the ocean air.
Do you know what a snow globe is? You can see some here . In this investigation, you will make an ocean sand globe. Snow globes have a theme, an idea, place or thing they are about. Your sand globe can be about anything or place having to do with the ocean. The only thing it has to have in it is ocean water.
Here are some things to think about before you decide what to put in your ocean sand globe:
You don't want it to be too big. A small jar like a baby food jar will work. If you decide to go bigger, you can, but very big will make it too heavy and messy. No jar bigger than a mayonnaise jar is best.
Anything you put into your globe has to be something that will not dissolve in your ocean water. Paper won't work. Living things won't work either even if they are dead now. They will just get all yucky after awhile. You can use small sea shells, little plastic models, and other little things you find in the aquarium section of the pet store.
The things you put into your globe can't be too big either. They have to fit in the jar.
You don't want too many things in your globe. You want to be able to see them when you shake it.
Anything that is heavy like a little sand castle, rock or sea shell has to be stuck to the bottom so it won't break the glass when you shake your globe. Anything that you don't want to float around in your globe will have to be stuck to the bottom, too.
The ocean water you put in your globe will be colored. It will be some shade of blue or green or blue-green. You want the things you put into your globe to be seen. Things that are blue or green might not be able to be seen very well.
You want your ocean sand globe to have a theme. Your globe could be about things on a beach. It could be about things on the bottom of the ocean. It could be about things that float on the ocean or swim in the ocean. It could be about a coral reef, kelp forest or some other ocean habitat. It could be about dolphins, fish or some other ocean living thing. It could be an ocean fantasy globe with make-believe sea monsters, treasure chests and pink sand. You decide.
If this is for school, check with your teacher to make sure your ideas are OK. You also will need to do some research so you can explain why you put what you did into your globe.
What do you need to make your ocean sand globe?
A clear glass or plastic jar with a lid. A baby food jar will work.
Some florist clay (from a craft store) if you have heavy things you want to glue to the bottom of your globe. Regular clay will get mushy once it sits in the water. Florist clay won't.
Things you want to put into your globe. Think small and plastic or cloth. Think plastic glitter, plastic confetti and sand. Not too much and not too many.
A glue gun and glue stick. Get a grownup to help you do the glue parts.
Blue and green food coloring.
Sea shells other things to decorate the top of your globe if you want.
What do you do?
Get all the things you need together in one place.
Make sure that all of things you want to put into your globe fit in it your jar with the lid on and screwed down tight.
If you have things that are heavy or you don't want to float around, put a clump of florist clay on the inside of your jar lid. Stick the things you want stuck to the bottom of your globe into florist clay. Set aside.
Fill the jar with water to see how much ocean water you need to make.
Pour the water out into another jar or bowl.
Add one drop of blue food coloring to the water. If you don't like that color for your ocean water, add a drop of green. If the color is too dark, add some more water. You may have to experiment to get the color you want. If you hate how it ended up, throw it out and start over.
What's missing from your ocean water? That's right. Ocean water is salty. Add a tiny pinch of salt to your water. Stir until it dissolves.
Pour your ocean water into your jar. If you want some ocean air above your ocean water, don't fill the jar all the way to the top.
Add a few of the things you want in your globe to your jar. Add them a few at time and see how it looks before you add more things. Put your glitter, confetti or sand in last.
Time for grown-up help. Plug in the glue gun with a glue stick.
When the glue is ready, have the grown-up squeeze glue onto the inside of the jar lid all around the edge of the rim.
Put the lid on the jar and screw it down tight.
Wipe off any water that spilled or seeped out of the jar onto the lid.
Have the grown squeeze more glue all around the outside of the lid below the rim.
Don't turn it over yet. Let it sit overnight to dry completely.
Now turn it over. Give it a shake. Do a little dance to celebrate.
Have the grown-up help you glue shells or other things to the top of your globe if you want.
What questions do you have about ocean water? Do some research and see if you can find out what causes waves or why the ocean salty.