Page 32 - E-Science Prim.5 2025 U2. _Neat

Experiment 10

Mixing it up with Mass (2)

You have in front of you: vinegar, baking soda, iodine,
cornstarch, spoons and balance.

Observation:

Record the mass of each

Vinegar = …….. Cornstarch = ……..

Baking soda = ……. Iodine = …………

Mixture = ………. Mixture = ……….

1- The summation of their masses before mixing equals the

summation of their masses after mixing.

2- A new matter is formed after mixing.

(Gas bubbles and dark blue compound)

Conclusion:

The masses of substances before mixing are equal to the masses
of these substances after mixing when their properties change.

(Forming new substance)

First Term 131