Question

Explain how each piece of evidence supports your claim. Make sure your reasoning includes scientific vocabulary. It's time to show off what you've learned!


write like a 7th grader

Answer 1

Here’s a simple way to explain how each piece of evidence supports your claim, written like a 7th grader. I’ll use the CER (Claim–Evidence–Reasoning) format and include scientific words.

Example claim:
- Claim: More sunlight makes plants grow taller.

Evidence 1:
- Data: Plants grown with 10 hours of light each day were 18 cm tall on average. Plants with 4 hours of light were 8 cm tall on average.
- How this supports the claim: This is quantitative data (numbers) that shows a clear trend: more light = taller plants. The independent variable is sunlight, and the dependent variable is plant height. Because height changed when sunlight changed, the data supports the idea that sunlight affects growth.

Evidence 2:
- Data: Over four weeks, plants under 10 hours of light grew 2 cm per week. Plants under 4 hours grew 0.5 cm per week.
- How this supports the claim: The rate of growth is another way to measure the dependent variable. The growth rate (a trend over time) is higher with more light, so the evidence shows a consistent pattern, not just a single measurement. This strengthens the conclusion that sunlight causes increased growth (causation suggested because other factors were controlled).

Evidence 3:
- Data: All plants got the same soil, water, pot size, and temperature; only light changed (control conditions).
- How this supports the claim: Having control variables means the experiment is fair. Because other possible causes were kept the same, the difference in height is more likely due to sunlight. This increases the experiment’s validity and helps show causation instead of just correlation.

Explain anomalies:
- Evidence 4 (anomaly): One plant in the 10-hour group was only 10 cm tall.
- How to handle it: This is an outlier. It might be due to disease, measurement error, or a genetic difference. Scientists repeat trials (replication) and use a larger sample size to make results more reliable. One odd result doesn’t disprove the trend.

Reasoning (tie it all together):
- The quantitative data (average heights and growth rates) show a clear pattern. The experiment controlled other variables, so the independent variable (sunlight) is the likely cause of the changes in the dependent variable (height). Repeating the test and getting similar results increases reliability, so we can conclude that more sunlight generally makes these plants grow taller.

Sentence starters you can use:
- “This evidence supports my claim because…”
- “The data shows that… which means…”
- “Since we controlled for…, the change in… must be due to…”
- “This result is reliable because we repeated the experiment and got similar data.”

That’s how you explain each piece of evidence. Use scientific words like data, variable, control, trend, correlation, causation, and replication to sound scientific and show you know what you learned.