Embedded Files
What's in a bath bomb that is producing the gas?
Lesson Objectives...
Analyze and interpret data to identify patterns in the characteristic properties of substances.
Plan and carry out an investigation to collect data to identify patterns in the characteristic properties of substances from a bath bomb when they are individually added to water.
Resources for Lesson 3...
Resources for Lesson 3...
Ingredients of a Bath Bomb
Ingredients of a Bath Bomb
What do you notice (observations) and wonder (questions) from the ingredients of a store bought bath bomb and homemade bath bombs?
Store Bought Bath Bomb Recipe
Store Bought Bath Bomb Recipe
INGREDIENTS: SODIUM BICARBONATE, CITRIC ACID, SODIUM CHLORIDE (SEA SALT), SUCROSE, MAGNESIUM SULFATE (EPSOM SALT), GLYCINE SOJA (SOYBEAN) OIL, FRAGRANCE (PARFUM), SIMMONDSIA CHINENSIS (JOJOBA) SEED OIL, PRUNUS AMYGDALUS DULCIS (SWEET ALMOND) OIL, SESAMUM INDICUM (SESAME) SEED OIL, MACADAMIA TERNIFOLIA (MACADAMIA NUT) SEED OIL, HELIANTHUS ANNUUS (SUNFLOWER) SEED OIL, HAMAMELIS VIRGINIANA (WITCH HAZEL), ALCOHOL, RED 28 (CI 45410), BLUE 1 (42090), YELLOW 5 (CI 19140), WATER (AQUA, EAU).
Recipe A Bath Bomb
Recipe A Bath Bomb
⅓ c baking soda
⅙ c sugar-free lemonade mix
⅙ c Epsom salts
1 T cornstarch
1 t olive oil
⅓ t water
Recipe B Bath Bomb
Recipe B Bath Bomb
⅙ c Epsom salts
⅓ c baking soda
⅙ c citric acid
1 t olive oil
⅓ t water
Recipe C Bath Bomb
Recipe C Bath Bomb
½ c baking soda
¼ c citric acid
⅛ c coconut oil
1 t table salt
1 t sugar
Recipe D Bath Bomb
Recipe D Bath Bomb
⅙ c non-sugar-free lemonade mix
⅙ c Epsom salts
⅓ c baking soda
⅓ t water
1 t olive oil
Conduct an Investigation
Conduct an Investigation
Observe each ingredient and record data that would help us tell them apart.
baking soda
table salt
citric acid
powdered lemonade mix (sugar-free)
powdered lemonade mix (non-sugar-free)
Epsom salts
olive oil
coconut oil
sugar
cornstarch
Investigating Ingredients in Water
Investigating Ingredients in Water
Make observations from mixing the ingredients with water.
For full screen video, click HERE!
What we figured out this lesson...
What we figured out this lesson...
Substances in the bath bomb have properties that can help us to identify them (e.g., solubility, odor, state of matter at room temperature, melting point, density, and color).
Adding only one substance in a bath bomb to water does not cause gas bubbles to appear.
Page updated
Report abuse