Endothermic (cold) reactions
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.
5-9s groups: 1 - 1:50pm (UK GMT): 23rd or 24th February
10-15s groups: 2:10 - 3pm (UK GMT): 23rd or 24th February
(Select from the options below).
Equipment (To join an entirely optional practical. Provisional list only: an updated list will be provided a week in advance)
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 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 student 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).
By booking you are agreeing to read and abide by the privacy, safety and cancellation policies. (Opens in a separate window).