Science Week

A pencil falls off a desk. What moves the pencil towards the floor?

• mass

• friction

• gravity

• speed

Which BEST describes a characteristic of the jet stream?

• It forms a boundary between a cold air mass and a warm air mass.

• It creates the high winds around the eye of a hurricane.

• It forces the hot air along the equator to rise to areas in North America.

• It causes high pressure air masses to rotate clockwise.

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Four solid balls, each with a different mass, are moving at the same speed. Which ball would require the MOST force to stop its motion?

• ball with a mass of 5 kg

• ball with a mass of 10 kg

• ball with a mass of 15 kg

• ball with a mass of 20 kg

Tags

NGSS.MS-PS2-2

The Nature Conservancy created a scale to describe how endangered a species is. Which symbol represents a species that is known to be completely extinct?

• X

• H

• 1

• 2

What is one of the main reasons many plants and animals are endangered?

• disease

• deforestation

• fires destroy the animals' homes

• tourists

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

What is another part of the Recovery Plan once a plant or animal has been identified as being in danger of extinction?

• how long it will take

• how many people will be needed

• how many plants or animals have been destroyed

• how many plants or animals are left

What would the most likely effect be?

• the species has recovered and is no longer endangered

• the species is now extinct

• the species remains endangered

• the species still needs help

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Shows the amount of energy that moves from one feeding level to another in a food web.

• energy pyramid

• ecosystem

• salinity

• decomposer

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

A measure of the amount of dissolved salts in a given amount of liquid.

• saltwater

• rainforest

• producer

• salinity

A group of individuals of the same species that live in the same area.

• population

• omnivore

• terrestrial

• heterotroph