Bell Ringer Quiz 4 (Unit1) – TEKS 8.6E: Evidence of Chemical Reactions in Baking

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SCI.8.6E

Investigate how mass is conserved in chemical reactions and relate conservation of mass to the rearrangement of atoms using chemical equations, including photosynthesis.

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Q 1/3
Score 0
Which statement best describes evidence that a chemical reaction occurs as a cake bakes?
30
The water in the cake batter evaporates.
The cake rises as gas bubbles form in the baking cake.
The cake takes the shape of the container in which it is baked.
The water in the cake batter is used to keep the cake moist as it bakes.
Q 2/3
Score 0
When baking soda (NaHCO₃) is heated in the oven, it breaks down into sodium carbonate (Na₂CO₃), carbon dioxide (CO₂), and water (H₂O). Which part of this process demonstrates the law of conservation of mass?
30
The cake batter becomes solid.
The total number of atoms before and after the reaction stays the same.
The bubbles escape into the air.
The color of the cake changes as it bakes.

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Bell Ringer Quiz 4 (Unit1) – TEKS 8.6E: Evidence of Chemical Reactions in Baking

Quiz by Grade 8 Science - Texas Education Agency

Customize this quiz to suit your class

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Measures 1 skill from