Scientific Method

Problem Always in the form of a question Example: Do plants need sunlight to survive?

Research - Collect Information Read books on PHOTOSYNTHESIS Search the Internet Read magazines Asks Experts

Hypothesis – an educated guess Possible answer to the problem Complete sentence Example: Yes, plants need sunlight to produce food to survive.

List every step you take Experiment Test your hypothesis Gather materials List every step you take Make observations

Experiment-Example Materials Two pea plants Water Closet Sunlight Soil Put one pea plant in each pot with 2 cups of soil Place one plant in the closet Place one plant in the direct sunlight Give both plants half a cup of water daily Observe plant growth for two weeks

Record Results Write a Report Draw Graph Make a chart Draw Picture

Growing Plants Inches

Conclusion Tell whether your hypothesis was correct or incorrect Example: My hypothesis was correct. Plants need sunlight to survive. The data shows that at the end of 5 days the plant in the sunlight grew 50% taller than the one without sunlight.