2022 Sci OST Questions

Which statement is true about objects that are at rest (not moving)?

• Objects at rest will not move unless a force acts on them.

• Very light objects begin to move without a force acting on them.

• Objects at rest move unless an outside for holds them in place.

• Very heavy objects will not move even when a very strong force acts on them.

Tags

NGSS.MS-PS2-2

Which sequence correctly shows how energy flows through part of this food web?

• Frog → Snake → Hawk

• Snake → Frog → cricket

• Hawk → Snake → Rabbit

• Rabbit → Berries → Cricket

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

Which of the organisms shown in the partial food web that provide energy directly to the bats?

• Moths

• Aquatic Insects

• Plant Nectar

• Owls

• Hawks

Tags

NGSS.MS-LS2-3

A student wants to create a food chain that includes one producer, one consumer, and one decomposer from a prairie ecosystem. A partial prairie food web is shown. Which group of organisms could the student use in the food chain?

• snake, mouse, berries

• berries, grasses, mouse

• fungi, snake, grasshopper

• grasses, grasshopper, fungi

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

Scientists measure the speed of lizards when running to catch prey and when running to escape predators. The scientists conclude the lizards run fast if they are running after prey, but they run even faster if they are running away from predators. Select two variables the scientists could use to measure the relative speed of running lizards to support their conclusion.

• the color of a lizard’s skin

• the length of a lizard’s tail in centimeters

• the total distance a lizard runs in one second

• the amount of time it takes a lizard to run one meter

• the number of prey a lizard is able to catch at one time

The picture shows the surface of Mars after two surface samples were removed. Which device was used to take both samples?

• rover

• rocket

• satellite

• telescope

Tags

NGSS.MS-ETS1-2

Students watch a video about bees flying from flower to flower. The flow chart shows their observations from the video. The students claim that the relationship between the bees and flowers is commensalism. Which statement provides a reason that the students' claim about commensalism is wrong?

• The bees benefit and the flowers benefit.

• The bees are harmed and the flowers benefit.

• The bees benefit and the flowers are unaffected.

• The bees are harmed and the flowers are harmed.

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Below are descriptions of four organisms in an ecosystem. Identify the role of each organism in the ecosystem.

Groups:

(a) Producer

,

(b) Consumer

,

(c) Decomposer

• Organism gets energy from live plants

• Organism breaks down dead organisms for energy

• Organism makes food from sunlight

• Organism eats omnivores for energy

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

Drag the size and composition labels to identify whether they describe inner planets or outer planets. If the label does not describe either of the groups of planets in our solar system, identify it as an incorrect description.

Groups:

(a) Inner Planets

,

(b) Outer Planets

,

(c) Incorrect Description(s)

• Small and Mostly Solid

• Large and Mostly Solid

• Small and Mostly Gaseous

• Large and Mostly Gaseous

Tags

NGSS.MS-ESS1-3

Based on the experiment's results, which student group has the largest number of marbles?

• student group R

• student group S

• student group T

• student group U