Home    Subscribe    Contact    Login
Share your craft ideas for a share of the ad revenue. Click on Write For Us.

Sand Cast Plaster Fossils

by Jane (follow)
5 to 10s (606)      Under 5s (584)      Any Age (402)      Over 10s (380)      Fish (28)      Dinosaur (15)      Plaster of Paris (11)      Footprint (7)      Sand (6)      Fossil (3)     


homemade plaster of paris fossils, homemade fish fossil, diy fish fossil, kids craft fossil, plaster of paris sand casting, footprint and fish fossil, plaster cast craft


Making things with plaster of Paris is surprisingly easy and not as messy as you might think. At just a few dollars for a big bag, it's also quite a cheap material. These sand cast fossils are really fun to make for kids of all ages. You can press just about anything into the sand to make a mold so let your imagingation go wild.

Time: 30 minutes plus 24 hours drying time
Age: Any Age
Level: Medium

Materials
Plaster of Paris
Damp sand
Tub for the mold
Disposable tub to make the plaster mix in
Items to press into the mold (eg small plastic toys, feet, shells etc)



pouring plaster onto sand mold, plaster of paris fish, pouring plaster onto sand to make a cast, animal cast with plaster, diy fossil, how to cast an imprint, how to make a fossil at home
Starting materials


Method
Put at least an inch depth of damp sand into a tub. The tub shape will be the final size and shape of your fossil so choose a larger tub if you want to be able to press lots of different things in, or something small (like a paper cup) if you want to make a small fossil with just one object.



homemade plaster of paris fossils, homemade fish fossil, diy fish fossil, kids craft fossil, plaster of paris sand casting, footprint and fish fossil, plaster cast craft


Press items into the sand and then remove again to leave imprints. Let your imagination go wild! Why not try footprints, plastic animals, plastic dinosaurs or sea shells?



plaster of paris fossil, homemade footprint fossil, sand mold plaster casting, homemade fossil, making your own fossil, diy plaster fossil, plaster of paris craft idea




plaster of paris fossil, homemade footprint fossil, sand mold plaster casting, homemade fossil, making your own fossil, diy plaster fossil, plaster of paris craft idea




pouring plaster onto sand mold, plaster of paris fish, pouring plaster onto sand to make a cast, animal cast with plaster, diy fossil, how to cast an imprint, how to make a fossil at home
We tried a footprint as well as various plastic animals


Mix the plaster of Paris in a disposable container according to the instructions on the packet. We used 2 cups of plaster and added it to 1 cup of water to make two large fossils. Stir well until you have a pancake batter consistency.



homemade plaster of paris fossils, homemade fish fossil, diy fish fossil, kids craft fossil, plaster of paris sand casting, footprint and fish fossil, plaster cast craft


Gently pour the plaster onto your sand mold. Don't tip too quickly or you will make indents in the sand as you pour. We poured about a 1 centimetre thickness of plaster but you could choose to make a thicker one



pouring plaster onto sand mold, plaster of paris fish, pouring plaster onto sand to make a cast, animal cast with plaster, diy fossil, how to cast an imprint, how to make a fossil at home




homemade plaster of paris fossils, homemade fish fossil, diy fish fossil, kids craft fossil, plaster of paris sand casting, footprint and fish fossil, plaster cast craft


Leave to set for at least a few hours then pop the dried cast out of the tub and rinse the sand off with water.



pouring plaster onto sand mold, plaster of paris fish, pouring plaster onto sand to make a cast, animal cast with plaster, diy fossil, how to cast an imprint, how to make a fossil at home
Ready to rinse off the sand


Some sand will remain encrusted on the surface giving it a grainy finish.
Allow to dry fully for about 24 hours



plaster of paris fossil, homemade footprint fossil, sand mold plaster casting, homemade fossil, making your own fossil, diy plaster fossil, plaster of paris craft idea
Our fish gained an extra fin where we poured the plaster a bit too quickly and it made a dent in the sand shape when we poured




plaster of paris fossil, homemade footprint fossil, sand mold plaster casting, homemade fossil, making your own fossil, diy plaster fossil, plaster of paris craft idea


The grainy sand finish looks great to give an ancient fossil appearance. If you want to get a smooth finish you could try using modelling clay instead of sand for the mold.

Notes
Mixing the plaster of Paris up in a disposable container means you can just throw away the container after the activity. As plaster can harden in pipe work you won't want to pour any wet plaster down the sink. The tub and tin we used for the sand casting were not damaged after we had removed the dried casts. Try not to touch the plaster dust or wet plaster and be careful not to inhale any plaster dust.

Categories
#Under 5s
#5 to 10s
#Over 10s
#Any Age
#Plaster of Paris
#Sand
#Fossil
#Footprint
#Fish
#Dinosaur
I like this Article - 10
[ print friendly ]
More Articles by Jane
Here's a quick and easy activity to keep kids busy at a restaurant
11 likes
Making your own sidewalk chalk paint at home from old stubs of chalk is cheap and easy
10 likes
If you're ever staying at a hotel or spa with disposable fabric slippers, hold on to them and have f...
6 likes
I always like getting my kids involved in the preparations for a birthday party
8 likes
Create your own mat by weaving strips of coloured paper
6 likes
This activity is lots of fun for all ages
13 likes
view all articles by Jane
Articles by Jane on Other Hubs
My daughter was given a pack of recently which are lots of fun
8 likes
Create some cheap and easy Halloween bat bunting - a great decoration for a Halloween party! ...
8 likes
These star fairy cakes are really easy to make and decorate
657 views
Salvage some old coat hooks and create your own upcycled coat rack for a hallway
13 likes
ID: 2154
[ Submit a Comment ]
This project looks great, and I look forward to trying it with my 2 yr. old grandson.
Too cute!!
Trending Articles
A great Easter themed craft that could be used to collect mini chocolate eggs or be given as a gift...
6 likes
Making popcorn from scratch is really easy, much cheaper than buying from the shops and with this re...
6 likes
Make this cute little fish with your little ones using items that can be found in most homes
2 likes
Make your own badges using some papers, mountain tape and, last but not least, some creativity
7 likes
This is a fun messy sensory activity, best done outside on a sunny day
by Jane
15 likes
This is an awesome craft for every princesses who love the Beauty and the Beast
1 like
These easy brownies are transformed for Easter with a little icing and mini eggs to create chocolate...
1 like
An easy brownie recipe to make with the kids
1 like
A really easy painting project that little kids will love and great for Easter
6 likes
This makes a great Easter, Spring or Mother's Day card that's easy for little fingers to create
6 likes
Categories
Under 5s (584)
Any Age (402)
Over 10s (380)
Baby (12)
Links (1)
Easy (866)
Medium (240)
Hard (37)
 
Copyright 2012,2013,2014,2015,2016 On Topic Media PTY LTD. ABN 18113479226. mobile version