A juice made from red cabbage has a completely different color in an alkaline and acidic environment. This shows how the smallest influences can have a big effect and how creative God is in creation.
Material
- ¼ head of red cabbage
- Vinegar
- Baking soda (or baking powder)
- Washing powder
- Other acidic or alkaline substances (toilet cleaner, bile soap, etc.)
- Knife
- Cutting board
- Mortar (or other container such as a bowl or similar with blunt wood to reduce the red cabbage pulp)
- Sieve or, even better, funnel with filter paper
- At least four glasses
Carrying out the experiment
- Cut the red cabbage into fine, small pieces.
- Using a little warm water, crush the red cabbage with a mortar in a sturdy bowl. Alternatively, simply crush the pieces in the bowl with a blunt wooden stick and mix. Add a little more water and mix well.
- The red cabbage water can now be distributed into the jars through the sieve or using the funnel with filter paper.
- Now you can carefully add a few drops of the following to the jars:
- Vinegar
- Baking soda or baking powder
- Washing powder
- Other acidic or alkaline substances (toilet cleaner, bile soap, etc.)
- Perhaps the children have other ideas..
Left (red): acidic; center (purple): neutral; right (green): alkaline (basic)
Biblical statement
Everything shapes us: It is important to let Jesus shape us.
God was incredibly creative in creation (e.g. Psalm 139:14, Genesis 1:31)
Keywords:
Chemical experiments, chemistry, experiments, acids, bases, pH value
Proof of source
Cover picture: Markus Sigirst
Idea: With the kind permission of the BESJ (Bund Evangelischer Schweizer Jungscharen), slightly modified by Markus Sigrist
