Water Jelly Cubes Experiment

Suitable for ages 5 to 13 years
Year 1 to Year 8 (P2 - S2)

Our best selling experiment last year.

They start off as tiny little jelly cubes, just a few millimetres across.

Put them in water and within a few hours they have grown to over 100 times their original size -

Once they have grown to full size, the Water Jelly Cubes have a great texture.
Children of all ages love to touch them.

Place them in water and they become invisible!
(They have the same refractive index as water.)

You can even shrink them back to their original size.
(Although you will have to be patient - this usually takes a couple of weeks.)
A fascinating example of a Reversible Change.

The Water Jelly Cubes work in a similar way to growing toys - such as the Growing Alligator
- but they grow much faster -
and their small size means that they pose a more interesting challenge to older pupils.

Different worksheets allow pupils with a wide range of ages and abilities to take part in this experiment.
Depending on age, the activity includes:

Examining and describing the properties of a novel material (which the children have probably never seen before);

Measuring quantities - particularly very small quantities which are difficult to measure;

Absorption and evaporation of water;

The importance of repeating measurements several times (and taking an average of the measurements).

Water Jelly Cubes Standard Pack (Primary)   (S07)   £6
Water Jelly Cubes Standard Pack (KS3)   (K07)   £6
Water JellyCubes Class Pack (Primary)   (S07C)   £12
Water JellyCubes Class Pack (KS3)   (K07C)   £12
Additional Water Jelly Cubes   (P07)   £4
plus £3 p+p if your total order value is less than £30.

The Standard Pack contains:

Worksheets and Teacher Notes in a spiral bound book (so they can be easily photocopied).

1 small packet of Water Jelly Cubes - sufficient for about 3 experiments.

The Class Pack contains:

Worksheets and Teacher Notes in a spiral bound book and on CD-ROM - so you can print as many copies as you need.

1 large packet of Water Jelly Cubes - sufficient for about 20 experiments.

The Additional Water Jelly Cubes is a medium packet of Water Jelly Cubes - sufficient for about 10 experiments. It does not contain any Worksheets or Teacher Notes.

This experiment is included in the Amazing Science for Under 7s Instant Science pack,   7 - 9 years Science Club ,   9 - 11 years Science Club and is one of the KS3 Instant Science packs .

Click here to download an Order form
Or simply e-mail your order to profbrainstorm@hotmail.com