Question

Question/Problem
(What is the problem you want answered?)

Hypothesis
(Your testable prediction: what do you think will happen? If…(independent variable), then…(dependent variable))

Materials Used
(What do you need for your experiment? Your list must be accurate, complete, and specific. Only 3 things or less.)


Methods & Procedure
(Write the instructions step-by step so it is repeatable by someone else)

Results

Insert a chart or graph of your results.

Observations
(What did you notice with your senses?)


Conclusions
(Answer your question from the purpose at the top. Does the data support your hypothesis and is it correct? How can you make improvements or what would you do differently?)

Answer 1

I can fill this template with a complete sample experiment so you can see how to use it. If you want a different experiment, tell me which one and I’ll adapt the template.

Experiment title / Question (purpose)
Does the amount of daily sunlight affect the growth (height) of bean plants over two weeks?

Hypothesis
If bean plants receive more daily sunlight (independent variable), then they will grow taller (dependent variable) after 14 days.

Materials Used (3 items or less)
- 3 identical potted bean plants (each in same size pot with same soil and same-age seedling)
- Measuring ruler (cm)
- Watering container with measured volume (e.g., 50 mL syringe or small watering can)

Methods & Procedure (step-by-step, repeatable)
1. Label the three pots A, B, and C.
2. Place plant A where it will receive ~8 hours of direct/bright light per day (full sun).
3. Place plant B where it will receive ~4 hours of direct/bright light per day (partial sun).
4. Place plant C where it will receive ~0 hours of direct sun (indoor, shaded).
5. Each morning at the same time, give each plant exactly 50 mL of water.
6. Keep all plants at the same room temperature and avoid moving them between locations.
7. Measure the height from soil level to the top of the main stem for each plant every 2 days (Day 0, 2, 4, 6, 8, 10, 12, 14). Record measurements in cm.
8. At each measurement also note leaf color and general condition (observations).
9. After 14 days, analyze the height data to compare growth among treatments.

Results
Table of hypothetical sample data (height in cm)

Day | Plant A (8h) | Plant B (4h) | Plant C (0h)
0 | 5.0 cm | 5.0 cm | 5.0 cm
2 | 6.2 cm | 5.8 cm | 5.3 cm
4 | 7.8 cm | 6.7 cm | 5.6 cm
6 | 9.5 cm | 7.6 cm | 5.8 cm
8 | 11.0 cm | 8.4 cm | 6.0 cm
10 | 12.6 cm | 9.1 cm | 6.1 cm
12 | 13.8 cm | 9.7 cm | 6.2 cm
14 | 15.0 cm | 10.2 cm | 6.3 cm

Simple text bar chart of final heights (proportional)
Plant A: ################### (15.0 cm)
Plant B: ############# (10.2 cm)
Plant C: ### (6.3 cm)

Observations (sensory and qualitative)
- Plant A: Taller stems, leaves bright green and spread outward; stem thicker; no wilting.
- Plant B: Moderate height, leaves slightly paler than A, stems thinner.
- Plant C: Little height increase, leaves small and pale, some leaning toward light (phototropism).
- No unusual smells; soil surface remained slightly damp after watering.

Conclusions
- Answer to the question: Yes — plants receiving more daily sunlight grew taller over 14 days.
- Does data support the hypothesis? Yes. Plant A (8 hours) showed the most growth, Plant B intermediate, Plant C minimal growth.
- Improvements / what to do differently:
- Increase the number of replicate plants per treatment (n > 1) to reduce individual variation and allow statistical analysis.
- Use a light meter to quantify actual light intensity (lux or µmol/m²/s) rather than estimated hours.
- Monitor and record soil moisture and temperature to ensure those are constant across groups.
- Extend the experiment longer than 14 days to observe longer-term effects.
- Randomize pot positions within each light condition and blind the measurer if possible to reduce bias.

Would you like this filled-in template adapted for a different experiment (e.g., effect of sugar on yeast, salt on seed germination, insulation on melting ice)?