This experiment shows kids that they cannot force friends to accept Jesus
Two-litre plastic cold-drink bottles.
Sharp pointed scissors.
Small round balloons (about 150 mm blown up diameter).
Use a sharp pointed scissor to make a small round hole low down on the side
of a dry 2 litre cold-drink bottle. Size the hole to suit the small
cork. Lightly press in the cork and ensure that it makes an airtight
fit. (Alternately, cover the hole with a small piece of clear
Blow up the balloon and let the air out, then slip then end over the neck
of the bottle, and then push the body of the balloon into the bottle
opening. You will then be able to blow into the neck of the
A bottle is shown with the balloon inside it, but hiding the cork from the
view of the audience. Several children try to blow the balloon up,
but they cannot, showing that they cannot force friends accept Jesus as
their Saviour. They have to decide to do this themselves.
However, if they make a decision to accept Jesus, the cork is removed, and
they will be able to blow up the balloon inside the bottle!
Mary, Quite Contrary:
I have a cold-drink bottle with a balloon in it (Show the bottle with the
balloon inside it, but keep the cork facing you so the audience cannot see
). This bottle is like a girl named Mary who had never heard
about Jesus. She was disobedient and cheeky. One day someone
invited her to Sunday School, but Mary was very rude and noisy in class.
And so the teacher decided she needed Jesus in her heart. "Sit
down here," she ordered, "And listen real good to what I have to say.
You need Jesus in your heart and I'm going to get Him in there!"
The teacher then told Mary all about Jesus, but Mary found it too much to take
in and understand. Finally the teacher said, "Let's ask Jesus to come
into your heart." So the teacher prayed and Mary repeated it after her.
But, Mary kept her fingers crossed, because she didn't mean a single
Putting Jesus in Mary's Heart:
We want to help that teacher put Jesus in Mary's life. This balloon
represents Jesus, so I want a boy to blow up the balloon inside the bottle
and get Jesus right inside Mary's heart. Now you must blow hard!
(Let the child blow into the mouth of the balloon, but of course the air
pressure in the bottle will prevent him from blowing up the balloon
Your lungs are not tough enough, so huff and puff for all you're worth!
You cannot do it! Something is wrong! Oh dear, you can't force
Jesus into Mary's life. Let's try a girl. (Let a girl ry to blow
up the balloon in the same way).
By the way, did Mary say sorry for all the wrong things and sins she had done?
No, she didn't, and she didn't mean the prayer that she said.
She is still full of sin inside and that's the trouble! Jesus cannot
come into a life where there is sin!
No wonder you couldn't blow up the balloon. You first have to ask Jesus
to forgive all the sins you have done and to make your heart clean.
Only then you can ask Him to come into your heart.
Mary Finds Jesus:
I see there is a cork in the side of the bottle Now, that's been
keeping all Mary's sin inside. No wonder Jesus couldn't get into her
heart. Let's take the cork out and try again (Take the cork out
This time let's get Mary to pray again: "Dear, Jesus, please clean all the
sin out of my life and come and live in my heart." And this time she
really meant it!
I want you to try and blow up the balloon again (Let the girl blow again
and this time the balloon will blow up as the air pressure in the bottle
will escape through the cork hole). There, She's done it!
The sin is out of Mary's life and Jesus has been able to get into Mary's
life and now He is her Saviour. In fact Jesus filled Mary's life
and He changed her into a child of God.
Praying for Friends:
Perhaps some of your friends are like Mary, and you have tried to get them to be
Christians. But, they don't want to listen and change. I want you
to do this experiment so that it can remind you of Mary. We need to pray
for our friends, and allow the Holy Spirit to draw them to the place where
they believe, and want to ask Jesus to come into their lives.
Encourage the children to make their own balloon in a bottle experiment and
share it with friends and people they meet. They could use the story
about Mary or make up one of their own.