Praxis Science Flashcards

Questions and Answers

Ms. Reifschneider is most likely introducing a unit on which of the following concepts?

Perception of color is important for survival.

Animals use light to guide their actions.

A perception is only remembered if it is used to make a decision.

Animals use memories to guide their actions. (correct)

Which student response indicates a lack of understanding about the evidence and geologic history?

The fossils we can see are from species that lived in the ocean.

The layers of rock are in different colors in the shape of an ocean wave. (correct)

I can see a layer of rock with all kinds of shells in it.

Two of the layers are sand, with a layer of shells between them.

Which of the following describes a student-created model that best represents the movement of matter through an ecosystem?

A pyramid model showing the relative biomass at each trophic level.

An interconnected web showing the movement of matter between plants, animals, decomposers, and the environment. (correct)

A linear model showing the movement of matter from plants to animals to decomposers to the environment.

A concept map diagramming how a plant uses water, soil, and decomposed materials to grow and reproduce.

Which of the following sets of materials is most appropriate for kindergartners to successfully engage in the task of designing a model structure that reduces sunlight warming?

A bag of materials such as craft sticks, construction paper, glue, tape, and clay. Signup and view all the answers

Which of the following student conclusions presents a misconception about erosion?

Erosion is always harmful to the environment. Signup and view all the answers

Which of the following activities is most likely to help the student appropriately compare the Sun and other stars?

Viewing a brightly lit sphere close up and then from farther away down a long hallway. Signup and view all the answers

Which student made the best use of evidence to support his or her claim about the slime created?

Alyssa, who wrote that they had created a new substance because the slime has properties that are different from the properties of the three ingredients. Signup and view all the answers

Study Notes

Observation and Memory

Ms. Reifschneider's activity with the pinwheel illustrates the concepts of perception and memory.
One student articulates the challenge of visualizing the pinwheel through cardboard, emphasizing reliance on memory.
The correct answer reflects that animals use memories to guide their actions.

Geologic History Understanding

Sandy’s realization that an area was once an ocean prompts a discussion on geological evidence.
The student response demonstrating misunderstanding is linked to visual characteristics of rock layers rather than tangible evidence of marine life (shells).
Understanding geology requires interpreting physical evidence; color shapes are inadequate without supporting fossils or other geological data.

Ecosystem Modeling

An effective student-created model of matter movement in ecosystems is an interconnected web, showing relationships among plants, animals, decomposers, and the environment.
Other model types, such as pyramids and linear models, fail to capture the complexity and interaction within ecosystems.

Engineering in Early Education

Ms. Jenkins' kindergartners utilize hands-on materials to design structures that mitigate sunlight warming effects.
Appropriate materials include craft sticks, construction paper, glue, tape, and clay, facilitating engagement and active learning.

Concepts of Erosion

Misconception arises when a student states "Erosion is always harmful to the environment," underscoring the need to understand both positive and negative effects of erosion.
Key factors in erosion include land slope and vegetation, which influence the process and its environmental impact.

Comparing Stars

A student claims the Sun is the largest and brightest star, a misconception that can be addressed through comparative activities.
The most effective method is viewing a brightly lit sphere closely and then from a distance, illustrating how perspective affects perception of size and brightness.

Scientific Evidence and Claims

Mr. Shope's slime-making experiment challenges students to differentiate between mixtures and new substances.
Alyssa exemplifies strong scientific reasoning by asserting the creation of a new substance, noting differing properties compared to the original ingredients.
Effective use of evidence in scientific claims is crucial for validating conclusions in experiments.

Description

Test your understanding of sensory perception and observation skills with these Praxis science flashcards. This quiz emphasizes the ability to describe visual information accurately, even when it’s obscured. Challenge yourself with various scenarios and enhance your observation techniques.