Guided practice (T1 W3)
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Move from lesson study to exam practice in Natural Science.
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In this section, we will explore essential vocabulary related to our current topic in Natural Science. Understanding these terms is crucial for effective communication in science. Key terms include 'hypothesis', 'experiment', 'variable', and 'data'. We will discuss each term, its definition, and its relevance in scientific inquiry.
Let's consider a scenario where we want to test the effect of sunlight on plant growth. A possible hypothesis could be: 'If plants receive more sunlight, then they will grow taller.' This hypothesis includes an independent variable (sunlight) and a dependent variable (plant height). We will analyze how to structure a hypothesis and identify the variables involved.
In pairs, students will be given a set of scenarios related to scientific experiments. Each pair will identify the independent and dependent variables in their scenario. For example, in the scenario of testing different fertilizers on plant growth, students should identify the type of fertilizer as the independent variable and the growth of the plants as the dependent variable. After identifying the variables, pairs will share their findings with the class.
Students will individually design a simple experiment based on a question of their choice. They will write a hypothesis, list the variables, and outline the steps they would take to conduct the experiment. This activity encourages creativity and application of the concepts learned. After completing their designs, students will present their experiments to the class for feedback.
Answer: A testable prediction
A hypothesis is a statement that can be tested through experimentation.
Answer: The amount of water given to a plant
The independent variable is the one that is changed or controlled in a scientific experiment.
Answer: The dependent variable is the variable that is measured or observed in an experiment.
It is affected by changes in the independent variable.
Answer: To gather data and test a hypothesis
Experiments are designed to test hypotheses and gather data for analysis.
Answer: The first step is to ask a question or identify a problem.
This step sets the foundation for the research and experimentation process.
Answer: Information collected during an experiment
Data refers to the facts and statistics collected for reference or analysis.
Answer: To provide a standard for comparison
The control group is used as a baseline to compare the effects of the independent variable.
Answer: Repeating experiments is important to verify results and ensure reliability.
Repetition helps to confirm findings and rule out errors or anomalies.