MAKING YOUR OWN FOSSIL!!!!

Do you want to make fake or models of fossils? Then this experiment might help!!!


Materials:


Plasticine


Any small object, like- stone or leaf


2 paper cups


Water


Plaster of Paris

Instructions

Flatten a ball of plasticine until it is about 2cm thick, and the top smooth.

Put the plasticine into the paper cup with the smooth side facing towards you.

Now press the object you want to fossilize into the plasticine until the object is partially buried into the plasticine.

Now take the object out. A impression of the object is left behind.

Pour half cup of plaster of Paris into the other cup.


Add a quarter cup of water to the Plaster of Paris, and mix until smooth and leave the mixture like that for 2 minutes.


When the mixture has thickened pour it on the plasticine in the other cup.

Leave the  mixture until the plaster has dried.

When the plaster has fully dried, tear away the sides of the paper cup and take out the plasticine and plaster. Keep it in a warm dry place and enjoy your very own fossil.

What Is happening?

Fossils are extremely useful records of the past. In your case you left behind an impression of an object you own but fossils found by scientists around the world can date back to the time of dinosaurs. These fossils allow paleontologists (the name of scientists who study these types of fossils) to study what life might have been like millions of years

HOW MUCH CAN YOUR LUNGS HOLD???

Did you want to know how much  air your lungs can hold?
If, yes, YOU MUST TRY THIS EXPERIMENT!!


Materials:


A clean large plastic bottle
Kitchen sink or large water basin
Clean  plastic tubing
Water

Instructions

Put 10 cm of water into the kitchen sink.

 Fill the plastic bottle right to the top with water.
   
Put your hand over the top of the bottle to stop water escaping when you turn it upside down.


Turn the bottle upside down.


Place the top of the bottle under the water in the sink before removing your hand.


 Push one end of the plastic tube into the bottle. 
 Take a big breath in.

Breathe out as much air as you can through the tube

Observe: The air which you breathe out from your lungs, takes place of the water in the bottle, the amount of air present in the water is the  amount your lungs can hold!

Having a big air capacity in your lungs means you can distribute oxygen around your body at a faster rate!!

 Caution: Everything used in this experiment should be clean.