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

Question

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

Can you please turn your draft into a paragraph

Answer 1

Physical and chemical changes represent two fundamental processes that substances can undergo, each distinct in their characteristics and implications. A physical change alters the form or appearance of a material without changing its chemical composition; for example, when ice melts into water, the H2O molecules remain the same, only their state changes. In contrast, a chemical change results in the formation of one or more new substances, indicating that the original materials' chemical identities have been transformed; for instance, burning wood produces ash, smoke, and gases, which differ chemically from the original wood. Understanding these differences is crucial for various applications in science and everyday life, as it helps predict how substances will behave under different conditions. Overall, recognizing whether a change is physical or chemical enriches our comprehension of matter and its transformations.

Table of Physical and Chemical Changes

| Physical Changes | Chemical Changes | |-------------------------------|-------------------------------| | 1. Melting ice | 1. Burning wood | | 2. Ripping paper | 2. Cooking an egg | | 3. Dissolving sugar in water | 3. Baking cookies | | 4. Mixing sand and rocks | 4. Mixing vinegar and baking soda | | 5. Crushing a can | 5. Rusting iron |

Experiment Observation: Mixing Baking Soda and Vinegar

• Beginning Observations: I started with two separate substances: baking soda (a white, powdery substance) and vinegar (a clear liquid with a strong odor). When placed in a bowl, both substances appeared unchanged.

• Experiment: I added a tablespoon of baking soda to a small amount of vinegar in a bowl.

• Ending Observations: Upon mixing, a vigorous fizzing reaction occurred, releasing gas bubbles and producing foam that overflowed the bowl. The original substances seemed to disappear, and the mixture produced new substances, such as carbon dioxide bubbles.

Conclusion CER Paragraph

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

Evidence: First, there was a noticeable fizzing reaction, indicating the release of gas (carbon dioxide) as a product of the reaction. Second, the substances transformed into a mixture that did not retain the characteristics of the original materials; the baking soda and vinegar visibly reacted and produced foam.

Reasoning: According to scientific definitions, a chemical change is marked by the formation of new substances with different properties from the original reactants. The release of gas and the change in physical appearance (from powder and liquid to a fizzy mixture) illustrate that new compounds were formed, supporting my claim that this is indeed a chemical change. Through this experiment, I was able to observe and conclude that combining baking soda and vinegar exemplifies a chemical reaction due to the production of new products and observable changes in the substances involved.

Answer 2

can you turn that draft into a simple paragraph

Answer 3

In my experiment, I mixed baking soda and vinegar to observe the type of change that occurred. Before mixing, the baking soda appeared as a white powder, while the vinegar was a clear liquid. Once I combined them, a vigorous fizzing reaction took place, producing bubbles and foam that overflowed the bowl. This reaction demonstrated a chemical change because the original substances transformed into new products, evidenced by the release of carbon dioxide gas and the change in physical appearance. Overall, the combination of baking soda and vinegar illustrated a chemical change due to the formation of new substances and observable alterations in the initial materials.

Answer 4

can you write a short and simple "Physical or chemical change"

Answer 5

A physical change occurs when a substance changes its form or appearance but remains the same chemically. For example, tearing paper or melting ice are both physical changes because the materials involved do not change their chemical structure. In contrast, a chemical change results in the formation of new substances with different properties. An example of a chemical change is when baking soda reacts with vinegar, producing gas and creating new substances. In summary, physical changes are reversible and do not alter the chemical identity, while chemical changes create new substances and usually cannot be reversed.

Answer 6

can you shorten that to 1-2 sentences please

Answer 7

A physical change alters a substance's form or appearance without changing its chemical identity, like melting ice. In contrast, a chemical change creates new substances, as seen when baking soda reacts with vinegar.