Kitchen Science projects
21 projects for age 10 · page 2 of 2
Projects
Fizzy Sherbet Sweets
Citric acid and baking soda are dry until they hit the wet on your tongue — then they fizz (that same gas reaction!).
Invisible Lemon Ink
Lemon juice browns faster than plain paper when warmed, revealing the writing - a gentle heat reaction.
Ice Cream in a Bag
Salt makes ice melt at a colder temperature, pulling heat from the cream so it freezes.
🔒 PremiumBread in a Bag
Yeast is alive — it eats sugar and burps gas that makes the dough rise.
🔒 PremiumNaked (Rubber) Egg
Vinegar (an acid) dissolves the hard shell, leaving the bendy membrane - and the egg swells as water moves in (osmosis).
🔒 PremiumRed Cabbage Colour Changer
Red cabbage juice is a natural indicator - it turns pink in acids and blue/green in alkalis.
🔒 PremiumWater Filter from a Bottle
Filtering removes bits from dirty water; layers trap different sizes of dirt (but don't make it safe to drink).
🔒 PremiumBalloon Hovercraft
A cushion of escaping air reduces friction, so the disc glides almost freely.
🔒 PremiumSalt or Sugar Crystal Garden
Dissolving, saturation and evaporation - crystals form as water leaves behind the salt or sugar.