science- skills Flashcards
try not to fial
Identify the independent, dependent and controlled (constant) variables of an
experiment- independent variable
The independent variable is the factor that is deliberately changed or manipulated by the researcher to observe its effect on other variables. It is the cause in a cause-and-effect relationship.
Identify the independent, dependent and controlled (constant) variables of an
experiment- dependent variable
The dependent variable is the factor that is measured or observed in response to changes in the independent variable. It is the effect in the cause-and-effect relationship.
Identify the independent, dependent and controlled (constant) variables of an
experiment- constant variable
Controlled variables are the factors that are kept constant throughout the experiment to ensure that any changes in the dependent variable can be attributed solely to the independent variable.
Write an aim, hypothesis and conclusion for an investigation- aim
Identify the Topic: Clearly define the subject of your experiment.
Determine the Variables: Specify the independent and dependent variables.
Use Clear Language: Start with “To investigate,” “To determine,” or “To examine.”
Be Specific: Clearly state what you aim to achieve or learn.
Keep it Concise: Limit the aim to one or two sentences.
Write an aim, hypothesis and conclusion for an investigation- hypothesis
Identify the Variables: Determine your independent and dependent variables.
Make an Educated Guess: Predict the relationship between the variables.
Use Clear Language: Start with “If,” “Then,
Be Specific: Clearly state what you expect to happen.
Keep it Testable: Ensure it can be supported or refuted through experimentation.
Write an aim, hypothesis and conclusion for an investigati- conclusion
Restate the Aim: Briefly remind the reader of the experiment’s objective.
Summarise Key Findings: Highlight the main results without repeating data.
Interpret Results: Explain what the findings mean in relation to your hypothesis.
Discuss Limitations: Mention any factors that might have affected the results.
Suggest Further Research: Propose what could be explored next.
Identify appropriate materials (equipment/chemicals) to use in an investigation
Define the Experiment: Outline the objective.
List Required Equipment:
Measuring tools (ruler, thermometer)
Containers (beakers, test tubes)
Power sources (Bunsen burner)
Select Chemicals/Samples:
Reagents (fertilizers, acids)
Biological samples (plants, organisms)
Include Safety Gear:
Personal protective equipment (gloves, goggles).
Conduct a risk assessment for an investigation.
identfy hazard
Chemicals: Toxic, corrosive, or flammable substances.
Equipment: Sharp tools, heat sources, or electrical devices.
Biological Samples: Allergens or pathogens.
Evaluate Risks:
Chemical Exposure: Inhalation or skin contact can cause burns or poisoning.
Injury from Equipment: Cuts, burns, or electric shock from improper use.
Biological Risks: Allergic reactions or infections.
Control Measures:
Personal Protective Equipment (PPE): Use gloves, goggles, and lab coats.
Proper Handling: Follow protocols for using and disposing of chemicals.
Safe Workspace: Keep the area clean and organized to prevent accidents.
Write a method for an investigation
Title: Clear title of the investigation.
Materials: List all necessary equipment and substances.
Procedure Steps:
Preparation: Initial setup steps.
Experimental Steps: Detailed, sequential actions to conduct the investigation.
Observations: What to measure or note during the experiment.
Duration: Specify the length of the experiment.
Data Analysis: Brief description of how data will be analyzed.
Science skill: Evaluate the reliability, validity and accuracy of an investigation.
