Make a 'beanhouse' (Alternate Version) science experiment | Fizzics Education

Make a ‘beanhouse’ (Alternate Version)

Make a ‘beanhouse’ (Alternate Version)

Follow FizzicsEd 150 Science Experiments:

You will need:

One PET bottle with lid

Compost soil mixture from a nursery or supermarket *

One packet of bean seeds

Clear masking tape

Scissors – make sure you are allowed to use them!

*Compost and potting mix can contain the bacterium that causes Legionnaires’ disease.*

Wash hands and take precautions to avoid breathing potting mix dust. For more information see World Health Organisation.

Make a beanhouse science experiment version 1 - materials needed
1 Make a beanhouse science experiment version 2 - paper towel in plastic bag

Place paper in the bottom of a re-seal kitchen bag and moisten with water.

2 Make a beanhouse science experiment version 2- beans in bag with towel and water

Put your beans into the bag and seal the bag.

3 Make a beanhouse science experiment version 2 - experiment taped to the window

Tape the bag against a window and watch the beans sprout over time.


You could also see the effect of adding salt or sugar to the bags or perhaps light vs. dark. Which condition produces the fastest bean growth? It’s all about variable testing!

Why Does This Happen

Find out for yourself!

Growing your own beans in a PET bottle can be a lot of fun, but you can also use these beans to investigate factors that affect plant growth. Try setting up different bottles and changing one thing to see the effect (eg. the amount of water or light they get or adding salt to the soil). Changing one variable and seeing the result is part of the scientific method and we strongly encourage it!

Learn more!


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