Endothermic (cold) reactions - make bath bombs!
Feel the cold as you conduct your own endothermic reaction at home and make bath bombs!
+Watch exciting demonstrations!
+ The older groups will also learn about reaction profiles and the different energy levels of an endothermic chemical reaction.
Tuesday 8th March
5-8s group: 11 - 11:50am (UK GMT)
8-12s group: 1 - 1:50pm (UK GMT)
11-15s group: 2:10 - 3pm (UK GMT)
(Select from the options below).
Equipment (To join an entirely optional practical.
It is a good idea to have a whiteboard or paper, pen, ruler and calculator to hand in each session.
- Vinegar (any kind, min. 100mL) (avoid contact with eyes)
- Bicarbonate of soda (Min. 150g)
- Citric acid (min. 50g)
- Test tubes / boiling tubes / jars / small glasses, beakers or conical flasks
- Tray / plate to contain spills
- Thermometer if you have one (not essential)
- Cup cake cases, or silicon moulds
- Mixing bowl
- A few small bowls or saucers
- Mixing / desert spoon
- 2 teaspoons
- Pipettes / droppers / syringes
- Eye protection recommended
- (optional) Food colouring
- Optional: A few drops of essential oil eg. lavender, citrus or zest of a lemon or orange
- Optional: A (ready made) bath bomb and bowl of water
- Cloth / dustpan or brush for clear up
Links offer suggested sources of suitable materials.
What might younger students need help with?
Young students may need support to avoid / clean spills.
Price is for one device (screen) to join for one session.
Upon booking you will receive a photography consent form and opportunity to let us know about any Special Educational Needs and Disabilities (SEND).