100 likes | 198 Views
Soil, Water, and Plants. By PresenterMedia.com. Scientific Investigation Process. Wheel of Scientific Investigation. Step 1: Make Observations. Record your observations about the soil samples in your response journals. Sample bags contain: Rocks/Gravel Clay Sand Topsoil.
E N D
Soil, Water, and Plants By PresenterMedia.com Scientific Investigation Process
Step 1: Make Observations Record your observations about the soil samples in your response journals. Sample bags contain: • Rocks/Gravel • Clay • Sand • Topsoil Use your curiosity and senses to learn. Set up your journal to record your observations for each sample bag.
Be prepared to share some of the your questions. Step 2: Ask Questions I Wonder if… • Topsoil • Rocks/Gravel • Clay • Sand
Step 3: Learn More How can we find the answers to our questions? • What is that one question we want answered? • What do we already know about our question? • Where can we find the answers to our question?
Step 4: Design the Experiment Hypothesis Conduct an experiment to determine how much water different types of soil can absorb. • Rank your soil samples from “least absorbent” to “most absorbent.” • Now state your hypothesis…”We predict that the order of soil samples from least absorbent to most absorbent will be…
Step 4: Conduct the Experiment Steps Record the steps of the experiment in your response journal so that you are consistent with each sample bag. Follow the exact steps for the remaining soil samples. • Place the filter paper over the top of the jar. Make a shallow dent in the middle to hold the soil. Secure with a rubber band. • Fill the dent with some of the soil sample. • Carefully measure ¼ cup of water and slow pour evenly over the soil sample. Designate one group member to watch the inside of the jar while the water is being poured. • Record observations: • What happens when the water is poured? • What does the sample look, feel, and smell like after the water has been poured? • Remove the filter paper and pour the water in the jar into the measuring cup. How much of the ¼ cup of water is left?
Step 4: Conduct the Experiment Record Data Record observations with great detail.
Step 5: Create Meaning Connect your observations, reading selection, and the class discussion in order to gain meaning. • Reading Selection Why do you think the ability of soil to absorb water might be important? What do plants need to grow? Plants can never have too much water? True or False? Based on your experiment, which type of soil do you think would be best for plants? Why?
Step 6: Tell Others What Was Found Explain the scientific investigation process and your groups’ findings. What do we know about soil? What is different about these types of soil? What is hummus and explain its role in plant development? Do all plants need the same amount of water? Why?