science q1

• Quantitative observation


  Observation that involves numerical measurements
• Qualitative observation


  Observation that involves descriptions without numerical measurements
• Hypothesis


  A tentative explanation for an observation, phenomenon, or scientific problem that can be tested by further investigation
• Steps of the scientific method

  1. Ask a question

  2. Make some hypotheses

  3. Perform an experiment

  4. Interpret the results of the experiment

  5. Formulate a conclusion
• Variable


  A component in an experiment that is either maintained or changed to check the validity of the results
• Independent variable


  The condition that is varied or manipulated in an experiment
• Dependent variable


  The condition that results from manipulation or is affected by the independent variable
• Constant variable


  The condition that is controlled or kept the same in an experiment
• Fair testing


  Changing only one factor at a time while keeping all other conditions the same when conducting experiments
• Eggshells can be used as fertilizers for some varieties of orchids as shown by the greener color of their leaves
• Differentiate types of variables

  Independent variable is the condition that is varied or manipulated, dependent variable is the condition that results from manipulation or is affected by the independent variable, constant variable is the condition that is controlled or kept the same
• Identify some common household wastes that your family mostly disposed as trashes. Construct a chart that shows how you manage you wastes properly.
• Guimaras is the "Mango Capital of the Philippines". It's one of the producers of the sweetest mangoes in the world.
• There are two ways on how you can do your observations when conducting scientific investigation. It could be qualitative observation or quantitative observation.
• Identifying the color, smell, shape, and texture are qualitative observations. These observations focus on the quality of the object. Counting items like number of shoes sold per day, number of likes or hearts collected in your social media post, and number of steps you took while walking from house to school are all examples of quantitative observations.
• These kinds of observations are essential in following the scientific methods to come up with the most appropriate and effective solution to the problem. This will be done with the coordination of two or more of your sense like hearing, smelling, touching, seeing, and tasting.
• When observing things around you, you use your senses to find descriptive words or numbers to tell the properties of the materials or events.
• When inferring, you give information that is not gathered directly by your senses and you are explaining why things are happening based on what you have heard or learned before.
• Choose a current issue that your community is facing right now. Write your own observations and inferences on the freedom wall below. Categorize your observations and inference into qualitative and quantitative.
• From your chosen issue that your community is facing right now, ask your family, relatives, or friends to give their own observations and inferences about the issue. Categorize their observations or inference on the freedom wall below. This will help you get another perspective about the issue that will enable you to make scientific judgement.
• ad and lonely
• The plant needs water and sunlight


  The plant will soon die
• The temperature of the room is decreasing by 4 degrees Celsius


  This kind of observation is quantitative
• During a strong rain, you noticed that the light inside your house is fluctuating

  Brownout may happen
• You heard that the dog near the gate is barking loud and you thought that there is a stranger
• The orderly and systematic approach in solving problems

  Scientific Method
• Independent variable


  The temperature of water
• Hypothesis


  Sunlight can make the plants grow healthy
• Dependent variable


  Condition of the plant
• Factors kept constant


  The amount of water, air, and fertilizer
• Independent variable


  The amount of sunlight
• Steps in scientific investigations

  1. Identify the problem

  2. Formulate a hypothesis

  3. Test the hypothesis
• The plant in front of your window is turning yellow
• During a strong rain, you noticed that the light inside your house is fluctuating


  Blackout may happen
• Sequence of steps a scientist would follow when solving a problem

  Observation, Experiment, Hypothesis
• Independent variable in an investigation on time of studying science and score in the test

  Length of time to study science
• Quantitative observation


  Alcohol has 70 ml ethanol