MRS.GREN
What does the "M" "R" and "S" in the acronym MRS. GREN stand for?
Movement - Animals move their whole bodies, while plants might move parts, like turning leaves toward sunlight.
Respiration- getting energy from food. or
Reproduction - to produce again whether a genetic clone or with variation
Sensitivity/Stimuli - respond to one's environment
Giraffes have long necks which help them to reach food high in trees. This relates to which CCC?
A) Structure and Function
B) Cause and Effect
C) Scale Proportion & Quantity
D) Patterns
A) Structure and Function
Which of the following best describes a "claim" in the CER framework?
A) A hypothesis that predicts the outcome of an experiment.
B) A statement that answers a scientific question or problem.
C) A detailed explanation of the methods used in an experiment.
D) A collection of data gathered during an experiment.
B) A statement that answers a scientific question or problem.
Taking a stance on a matter should be able to provide evidence.
SEP stands for :
What is Science and Engineering practice
In a physics experiment, a student uses the formula F=maF = maF=ma to calculate the force acting on an object. If the mass of the object is doubled while the acceleration remains constant, what happens to the force?
This person is forced to use which SEP?
Using mathematics and computational thinking
What is a key difference between sexual and asexual reproduction in organisms?
A) Sexual reproduction requires two parents, while asexual reproduction requires only one.
B) Asexual reproduction leads to greater genetic diversity than sexual reproduction.
C) Sexual reproduction results in identical
A) Sexual reproduction requires two parents, while asexual reproduction requires only one.
As you plug your phone into the charger you can think about this CCC:
A)Cause and Stability
B) System and System models
C)Pattern and effect
D) Energy and matter
D) Energy and matter
This is where you back up your claim with HARDCORE PROOF!
Evidence
Which of the following scenarios best illustrates the use of a model to explain a scientific phenomenon?
A) A student writes a report on global warming.
B) A student creates a 3D diagram showing how tectonic plates move to cause earthquakes.
C) A student memorizes the steps of photosynthesis.
D) A student lists different types of ecosystems.
B) A student creates a 3D diagram showing how tectonic plates move to cause earthquakes.
The difference between a practice and a Concept is
A practice is something scientists and engineers do, while concepts is how they think
What does the N stand for? This means what?
Nutrition which means eats, absorbs, and or consumes food as a source of energy
If a certain insect population declines, leading to a decrease in the plants that rely on those insects for pollination, which concept helps explain this interaction?
Cause and effect
A student presents a claim that exercise improves mental health. The evidence includes a study showing that people who exercise regularly report lower stress levels. What type of reasoning would best connect the evidence to the claim?
In an experiment to determine the rate of photosynthesis, students measure the amount of oxygen produced by a plant in different light conditions. They then record their findings in a excel sheet to be analyzed. Which SEP is being used here?
Using mathematics and computational thinking
Which of the following best describes the relationship between cell division and growth in multicellular organisms?
A) Growth only occurs when cells increase in size, not in number.
B) Cell division contributes to growth by increasing the number of cells, which can then differentiate and contribute to the organism’s overall size and function.
C) Growth in multicellular organisms occurs through the enlargement of a single cell, rather than through cell division.
D) Growth is independent of cell division and relies solely on the accumulation of nutrients.
B) Cell division contributes to growth by increasing the number of cells, which can then differentiate and contribute to the organism’s overall size and function.
Excretion is an important process in living organisms because it:
A) Helps in the intake of nutrients.
B) Removes waste products produced by metabolic processes.
C) Allows for reproduction to occur.
D) Controls the movement of organisms.
B) Removes waste products produced by metabolic processes.
When studying the effect of toxins on different-sized organisms, why is it important to consider the size of the organism when determining how much toxin it can tolerate?
Which CCC would best apply to this situation?
Scale, Proportion and Quantity
Which of the following best explains the purpose of "reasoning" in the CER framework?
A) To list all possible outcomes of an experiment.
B) To explain how the evidence supports the claim using scientific principles.
C) To describe the methods used to collect data.
D) To restate the claim in different words.
B) To explain how the evidence supports the claim using scientific principles.
Reasoning This ties your "hardcore proof" to "your opinion on the matter":
A group of students needs to present their research on renewable energy sources. What is the most important aspect they should consider when communicating their findings to the class?
A study finds that increasing the concentration of a pollutant in a lake results in a decrease in fish population over time. Which of the following best illustrates the cause and effect relationship in this scenario?
A) The fish population decreases, leading to higher concentrations of pollutants in the lake.
B) The fish population decreases, and the pollutant concentration remains unaffected.
C) The pollutant concentration and fish population are both decreasing due to an unrelated factor.
D) The presence of the pollutant causes harmful changes in the aquatic environment, reducing the fish population.
D) The presence of the pollutant causes harmful changes in the aquatic environment, reducing the fish population.
Which characteristic of living things is directly involved when an organism sweats to cool down on a hot day?
A) Movement
B) Respiration
C) Sensitivity
D) Excretion
C) Sensitivity
In a lake ecosystem, a sudden increase in nutrients leads to an algal bloom. Over time, the oxygen levels in the water decrease, causing fish to die off. This example best illustrates which crosscutting concept?
Stability and Change
In a lab experiment, a student claims that saltwater freezes at a lower temperature than freshwater. Which of the following would be the best evidence to support this claim?
During a class debate on climate change, one student presents evidence showing an increase in global temperatures over the last century. What should the student do next to strengthen their argument?
Which SEP is seen here? What key words let you know?
Engaging in argument from evidence. The words "debate" and "evidence."
Is a regular #2 pencil "living", "non-living" or "dead"? Why?
Dead, because the wood is derived from a tree; therefore, it was once a living thing.
Which is NOT true about growth in living organisms?
A) In multicellular organisms it's due to an increase in the number of cells.
B) Occurs through the division or replication of cells.
C) Growth always involves an increase in physical size.
D) Growth includes repair & replacement of cells
C) Growth always involves an increase in physical size.
It can refer to the development and differentiation of cells, tissues, or organs. It can also include the repair and replacement of cells. This means regeneration and or healing. These may not change the the size, but restore function in damaged cells, tissues, organs and etc.
A forest ecosystem includes many interacting organisms and environmental factors. If a disease wipes out a major tree species in the forest, how would this impact the overall system?
D) The system would likely experience significant changes as other species are impacted.
A claim states that "Plants grow faster under blue light than under red light." The evidence shows that plants exposed to blue light grew 10 cm taller than those under red light. What reasoning would best connect the evidence to the claim?
A) Blue light is more visible to the human eye.
B) Blue light has a shorter wavelength, which is absorbed more efficiently by chlorophyll, promoting faster growth.
C) Red light is commonly used in households.
D) Both blue and red light are part of the visible spectrum.
B) Blue light has a shorter wavelength, which is absorbed more efficiently by chlorophyll, promoting faster growth.
After collecting data on the temperature and growth rate of bacteria, which of the following would be the best way to analyze the data?
A) Use a bar graph to compare the growth rates of bacteria at different temperatures.
B) Write a paragraph explaining why temperature affects bacteria growth.
C) Guess the most likely temperature for maximum bacteria growth.
D) Ignore any data points that don't fit the expected pattern.
A) Use a bar graph to compare the growth rates of bacteria at different temperatures.
Which of the categories is an expansion of the scientific method?
SEPs incorporate the principles of the scientific method while also integrating additional practices that are vital for understanding and applying science and engineering in diverse and complex situations.