By Dr. Jay K. Hackett
Lifestyles technology; residing issues desire strength, dwelling issues and their Environment.EARTH technological know-how; Rocks adn Minerals, gradual adjustments in the world, quick adjustments on Earth.PHYSICAL technological know-how; electrical energy, Magnetism.
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Additional info for California Science: Student Edition: Grade 4
Keep the leaves of Plant B uncovered. Put the plants on a sunny windowsill. Make sure each plant gets the same amount of sunlight and water. Plant B Plant A Predict What do you think will happen to each plant? Observe Uncover Plant A after four days. Record your observations about each plant in a chart. Infer Why do Plant A and Plant B differ after four days? Quick Check Compare and Contrast How are Draw Conclusions Where on a plant does photosynthesis take place? How can you tell? plants alike?
8. Compare your results with other students’ results to confirm your findings. f. Follow a set of written instructions for a scientiﬁc investigation. # ' , $( Analyzing Data To communicate your results, set up your data clearly. The students used the data table to set up a line graph. They grouped the numbers in their data table using the scale: fewer than 10; 10–20; more than 20. See the students’ results on the graph below. DkcX[he\7djied
They determine if their prediction matched their results. They draw conclusions and try to explain their results. When you draw conclusions, you interpret observations to answer questions. When you draw conclusions and communicate results, you use this skill. Communicate Share information. Sometimes the results of an experiment lead to new questions. These questions can be used to form a new hypothesis and perform new tests. The process starts all over again. This process of asking and answering questions is called the scientific method.