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A paragraph describing the difference between a physical and a chemical change.

Lessons 5-9 will help you understand the difference.
This paragraph should be at least 5 sentences.
Make a table or chart and list 5 physical changes and 5 chemical changes.
Perform a simple action/experiment and record your observations
Include beginning observations and ending observations and the type of change-chemical or physical
This could be as simple as ripping a piece of paper in half, lighting a candle/match, creating a mixture of sand and rocks, baking cookies, mixing baking soda and vinegar, adding vinegar to milk, rolling out playdough, cutting an apple, cooking an egg, or anything else.
Write a conclusion paragraph about your experiment that explains if your experiment showed a physical or chemical change and include the following:
CLAIM - is the reaction a chemical or physical change?
EVIDENCE - at least 2 pieces of evidence from your observations that back up this claim
REASONING - What scientific definitions, principles, or examples explain why this evidence supports the claim?
Complete the CER draft table and write the conclusion CER paragraph

Please turn your draft into a paragraph

11 answers

Difference Between Physical and Chemical Changes

Physical changes involve alterations in the state or appearance of matter without changing its chemical composition. Examples include processes such as freezing, melting, or dissolving, where the substance remains the same at a molecular level. On the other hand, chemical changes result in the formation of new substances with distinct chemical properties, often evidenced by changes in color, temperature, gas production, or the release of light. For instance, when iron rusts, it reacts with oxygen to form iron oxide, a different substance altogether. Understanding the difference between these changes is essential in fields such as chemistry and materials science, as it informs how substances interact and transform when subjected to various conditions.

| Physical Changes | Chemical Changes | |----------------------------------|---------------------------------| | 1. Melting ice | 1. Burning wood | | 2. Dissolving sugar in water | 2. Baking soda reacting with vinegar | | 3. Cutting paper | 3. Rust forming on iron | | 4. Boiling water | 4. Cooking an egg | | 5. Folding origami | 5. Mixing cake batter |

Experiment Observations

For this experiment, I performed the action of mixing baking soda and vinegar.

Beginning Observations:

  • I placed a tablespoon of baking soda in a glass.
  • Then, I slowly poured in a quarter cup of vinegar.
  • Initially, the mixture was a white powder and a clear liquid.

Ending Observations:

  • Upon mixing, a vigorous fizzing and bubbling reaction occurred.
  • The mixture produced a cloudy foam that overflowed the glass.
  • After a few minutes, the bubbling subsided and left a clear liquid with a slightly different odor.

Type of Change: Chemical Change

Conclusion (CER)

Claim: The reaction of mixing baking soda and vinegar is a chemical change.

Evidence: First, I observed vigorous bubbling and fizzing as soon as the two substances were combined. Second, the final product was a clear liquid that had a different odor compared to the original substances.

Reasoning: This evidence supports the claim that a chemical change occurred because the reaction produced a new substance (carbon dioxide gas, which caused the bubbling) that was not present in the original materials. Additionally, the fact that the physical properties (odor and state) of the resulting mixture differed from those of the starting substances indicates a transformation at the molecular level, aligning with the scientific definition of a chemical change. Through this experiment, I was able to clearly demonstrate the distinct characteristics that separate physical changes from chemical changes, fortifying the fundamental principles of chemistry.

can you make a small paragraph of reasoning

The evidence from my experiment demonstrates that the reaction between baking soda and vinegar is a chemical change. The vigorous bubbling observed indicates the production of carbon dioxide gas, a new substance formed during the reaction. This gas was not present in either the baking soda or vinegar before they were combined, signifying a transformation at the molecular level. Additionally, the change in odor of the resulting mixture further supports the idea that new substances have formed, distinguishing this process from a physical change, where the original substances' chemical identities remain intact. Overall, these observations align with the scientific definitions of chemical changes, highlighting the transformation of substances into new products.

can you shorten that down to half please?

The evidence from my experiment indicates that the reaction between baking soda and vinegar is a chemical change. The vigorous bubbling observed signifies the production of carbon dioxide gas, a new substance that was not present before they were combined. Additionally, the change in odor of the resulting mixture supports the idea that new substances have formed, distinguishing this process from a physical change, where the original substances remain unchanged. These observations align with the scientific definitions of chemical changes, highlighting the transformation of substances into new products.

shorter if you can please

The reaction between baking soda and vinegar is a chemical change, as evidenced by the vigorous bubbling that indicates carbon dioxide gas production—a new substance. The change in odor also supports that new substances formed, distinguishing it from a physical change. These observations align with the scientific definitions of chemical changes, demonstrating a transformation into new products.

can you turn the draft into a paragraph

The reaction between baking soda and vinegar is a chemical change, as evidenced by the vigorous bubbling that indicates the production of carbon dioxide gas—an entirely new substance. Additionally, the change in odor further supports the formation of new substances, distinguishing this reaction from a physical change where the original materials remain unaltered. These observations are consistent with scientific definitions of chemical changes, demonstrating a transformation that results in new products. Overall, the experiment highlights the fundamental differences between chemical and physical changes.

can you simplify that abit

The reaction between baking soda and vinegar is a chemical change because the vigorous bubbling shows that carbon dioxide gas is produced, which is a new substance. The change in odor also indicates that new substances have formed, unlike in a physical change where the original materials stay the same. These observations align with the scientific definitions of chemical changes, showing that the experiment successfully demonstrated a transformation into new products. Overall, it clearly highlights the differences between chemical and physical changes.