STREAM Night 2024

The two animals identified in the image are vertebrates found in the Florida Everglades. They are similar because they both have a back bone. How else are they alike?

• Both have a hard outer shell for protection and support.

• Both breathe with their gills.

• Both lay eggs.

• Both can fly.

Answer explanation

The correct choice is 'Both lay eggs' because both animals are reptiles, which typically reproduce by laying eggs.

Tags

NGSS.MS-LS4-2

5th graders at Gateway K-8 are studying the plants surrounding the portables. They record variables such as the amount of sunlight received and the amount of rainfall. Which best describes this activity?

• investigation

• experiment

• simulation

• model

Answer explanation

The best term to describe the activity based on variables that cannot be controlled like sunlight and rainfall is an investigation.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

How does making nectar help a flower with the process of pollination?

• Nectar combines with pollen and transfers to flowers.

• Animals that drink nectar help spread pollen from flower to flower.

• Nectar flows with pollen from flower to flower.

• As people smell the flowers they help spread pollen.

Answer explanation

Animals that drink nectar help spread pollen from flower to flower, aiding in the process of pollination.

Tags

NGSS.MS-LS1-4

Select the function that does not apply to the skin.

• protect the body against outside virus and germs

• maintain body temperature

• create enzymes that control glucose (blood sugar)

• remove waste such as perspiration (sweat)

Answer explanation

The skin does not create enzymes that control glucose (blood sugar); this function is primarily carried out by the pancreas.

Melissa throws a baseball 5 meters. If the baseball doubles in size and mass, how could she throw this larger baseball the same distance, 5 meters?

• throw the ball in a different direction

• throw the ball with the other hand

• throw the ball with less force

• throw the ball with more force

Answer explanation

To throw the larger baseball the same distance, Melissa needs to apply more force due to the increased size and mass of the ball.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which statement is a correct analysis of the data?

• The greatest friction occurred between object 1 and the floor.

• Gravity did not affect object 2.

• The least friction occurred between object 1 and the floor.

• Gravity had the greatest effect object 2.

Answer explanation

The correct analysis is that the least amount of friction occurred between object 1 and the floor because it traveled the greatest distance in the shortest time.

Tags

NGSS.MS-PS2-4

Which of the follow is an example of erosion?

• water freezing, expanding, and cracking the rock

• wind carrying sediment at the beach

• roots growing and causing rocks to break

• river flowing making a rock smooth

Answer explanation

Erosion is the process of sediments moving by an outside force such as ice, wind, water, gravity, or waves.

Which of the following best explains the process of weathering rocks?

• Weathering can only happen if there is an extreme temperature change.

• Weathering moves rocks and sediments away to a new location.

• Weathering drops rocks and sediments in a new location.

• Weathering breaks down rock.

Answer explanation

Weathering breaks down rock.

Food, batteries, and gasoline all have stored sources of energy that need to be changed to work. Which type of energy is stored in these sources of energy?

• chemical energy

• mechanical energy

• electrical energy

• sound energy

Answer explanation

Chemical energy is stored energy that must be transformed to "work."

When Mike looked through a glass ball, the objects on the other side looked strange. What property of light caused the appearance of these objects to change when he looked through the glass?

• pitch

• absorption

• reflection

• refraction

Answer explanation

Refraction is the property of light that bends light waves causing the objects to appear different when viewed through a glass ball.

Tags

NGSS.MS-PS4-2