Science 1.05 Lesson- Matter and Energy Discussion-Based Assessment
Matter and Energy Discussion-Based Assessment
Make sure you have reviewed your Guided Notes and completed all Lessons in the Module. Then, contact your instructor to complete your Discussion-Based Assessment. You and your instructor will have a conversation about what you have learned.
Think about any questions you still have about the material in this Module; this conversation is a great time to ask these questions.
Take a few minutes to look over the rubric in this Lesson to get comfortable with the criteria your instructor will be using to grade you. The better you know the rubric, the better you will do!
Test Prep Like a Scientist!
Do you want a sneak peek at what test items are like? Give these practice questions a try. And remember, mistakes are a chance to learn!
Do you know the roles of producers, consumers, and decomposers in a food web?
Review the food web shown below.
What is the role of the grasshoppers in the food web?
Decomposer
Primary consumer
Producer
Secondary consumer
B. Primary consumer
In every ecosystem, you will likely find different types or organisms. We can categorize these organisms into different groups based on what they eat. Primary consumers are herbivores that eat producers. Since the grasshoppers are only eating the grasses, which are producers, their role in this food web is primary consumer.
Can you plan and carry out scientific investigations?
Julie observed that the plants in her garden were growing faster than her neighbor's garden. After observing further, she noted that the neighbor was using a different amount of water on the plants than she was. Julie had an idea for an experiment and created the following scientific question: How will the amount of daily watering affect plant growth?
What is the next step that Julie should complete when following the scientific method?
Complete research to learn more about the daily watering needs of garden plants.
Create a prediction for what will happen as a result of the investigation.
Make a list of all the supplies needed to carry out the experiment.
Make a data table and graph to compare results and look for trends.
A. Complete research to learn more about the daily watering needs of garden plants.
When completing an experiment, scientists follow the scientific method to stay organized and consistent. Once Julie came up with an objective, or purpose for the experiment, the next step is to research what is already known about the topic. This research will help Julie to make an educated prediction, or hypothesis, about what she thinks will happen before beginning her experiment.
Can you describe the transformation of energy from one form to another?
What is the energy change taking place when a flashlight is turned on?
Thermal energy is transformed into chemical energy.
Radiant energy is transformed into mechanical energy.
Chemical energy is transformed into radiant energy.
Mechanical energy is transformed into sound energy.
C. Chemical energy is transformed into radiant energy.
Energy transformations are constantly occurring all around us. The law of conservation of energy states that energy cannot be created or destroyed, but rather it may be transformed from one type to another. In this example, chemical energy in a battery is transformed into radiant energy of light when the flashlight is turned on.
Can you find evidence to support the law of conservation of energy?
Jenny dropped a rubber ball to observe how it bounces on the floor. She observed that as the rubber ball bounces, its potential energy is transformed into kinetic energy. Eventually, the rubber ball will stop bouncing. Which of the following explains why the rubber ball stops bouncing?
Each time the ball bounces, energy is destroyed until there is no energy left to bounce.
The mass of the rubber ball is too small to continue to create enough energy to keep bouncing.
Some of the ball's energy is converted to other energy types, like sound energy, that don’t help it bounce.
The pull of gravity is stronger than the bouncing ball which causes the ball to stop bouncing.
C. Some of the ball's energy is converted to other energy types, like sound energy, that don’t help it bounce.
When Jenny drops the ball, the potential energy is transformed into kinetic energy of motion that helps it to bounce. Some of the energy is also transformed into heat and sound, which do not help it to bounce. Eventually, the rubber ball will stop bouncing until someone or something transfers mechanical energy to it again.
Assessment
Review your Guided Notes for all Lessons in this Module.
Select the Rubric to review the criteria your instructor will use to evaluate your work.
Contact your instructor to complete the Discussion-Based Assessment.
After you have spoken with your instructor, submit your completed work to 01.05 Matter and Energy Discussion-Based Assessment.