CAST Practice Flashcard (Gr. 8)

Front

According to this graph, which is the most popular skittle? Options: Red, red

Back

Red, red

Front

Which type of graph shows change over time?

Back

line graph

Front

Which evidence could be used to challenge the biologist's claim that purple flowers in the population of plants attract more pollinators than other flower colors do?

Back

The purple flowers did not have any butterfly or beetle population.

Front

There are two schools in a town where earthquakes sometimes happen. The town leaders want to make the school buildings stronger and safer to protect students and teachers during an earthquake. The leaders ask three different construction companies to propose a plan for making the schools safer. Each plan should match three important criteria and constraints.

1. The schools will be made safe within two years.
2. The cost cannot be more than $0.47 per square meter of building space.
3. Both schools will be able to withstand an earthquake of magnitude 8.0

The table shows important details for three plans submitted by the construction companies. Select the plan that best matches the criteria and constraints made by the town leaders.

Back

Plan 2

Front

Why don't solar eclipses happen every month despite a new moon occurring?

Back

The model should show that the plane of the Moon's orbit around the Earth is inclined relative to the plane of Earth's orbit around the Sun.

Front

What type of graph is this?

Back

Pie Chart

Front

The living components or factors that affect an ecosystem or other organisms living in that ecosystem.

Back

Biotic Factor

Front

A biological community of interacting organisms and their physical environment.

Back

Ecosystem

Front

A student conducts 5 trials to investigate factors affecting the formation of impact craters and here are the results. Which statement BEST describes the results of the investigation?

Back

The kinetic energy of the marble just before impact is proportional to the depth of the crater it forms

Front

Why are too many nutrients (like nitrates and phosphates) bad for our waters?

Back

Nutrients in the water cause too much algae growth, which decrease the level of oxygen in the water.