Plant Experiments

Words to Know: Plant Growth Experiment

1. Hypothesis
   A smart guess about what you think will happen. Example: “If I give one plant more water, it will grow taller.”
   
   

2. Variable
   Something you change in an experiment. Example: amount of water, light, or temperature.
   
   

3. Control
   The plant that gets regular conditions (like normal light and water) so you can compare it to the others.
   
   

4. Data
   The information you collect—like height, color, or number of leaves.
   
   

5. Observation
   What you see, smell, or measure about your plants during the experiment.
   
   

6. Photosynthesis
   The process where plants use sunlight, water, and air to make their own food and grow.
   
   

7. Germination
   When a seed starts to grow and sprouts into a tiny plant.
   
   

8. Environment
   Everything around the plant—like light, air, water, and temperature.
   
   

9. Conclusion
   What you learn at the end of the experiment. Did your results match your hypothesis?
   
   

10. Replication
    Doing the same test more than once to make sure your results are reliable.