Open Scied 7.6

What are overlapping food chains with different pathways for the flow of energy in an ecosystem?

• Food Chain

• Food Web

• Energy Pyramid

Tags

NGSS.MS-LS2-3

____________ are organisms that get their energy from feeding on producers in a food chain.

• Primary Consumers

• Secondary Consumers

• Tertiary Consumers

• All of the above

Tags

NGSS.MS-LS2-3

___________ get their energy from eating other animals which have eaten plants.

• Primary Consumer

• Secondary Consumer

• Tertiary Consumer

• Producer

Tags

NGSS.MS-LS2-3

_________ are organisms that break down the remains of dead plants and animals without need for internal digestion.

• Decomposer

• Carnivore

• Omnivore

• Producer

How does matter change in the bath bomb and water phenomenon?

• Solids from the bath bomb break down into smaller pieces inside the water.

• Particles of a new state or phase of matter are produced.

• Particles of the bath bomb mix and may interact to produce a gas.

• Matter does not change in the bath bomb and water phenomenon.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

How can particles of a new substance be formed out of particles of an old substance?

• Particles may break apart and rejoin in different ways, forming a substance with a new identity.

• Particles get smashed up and disappear, and new particles pop up.

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What gas is produced by the bath bomb in water?

• The gas produced by the bath bomb in water is argon.

• The gas produced by the bath bomb in water is helium.

• The gas produced by the bath bomb in water is carbon dioxide.

• The gas produced by the bath bomb in water is nitrogen.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Where is the gas coming from when a bath bomb is added to water?

• When a bath bomb is added to water, a gas is produced from new matter that was somehow added to a closed system (sealed bottle).

• When a bath bomb is added to water, a gas is produced from matter that was already inside the closed system (sealed bottle).

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which combination of substances in a bath bomb in water produce the gas?

• Citric acid

• Cornstarch

• Baking soda

• Epsom salts

• Sugar

Tags

NGSS.MS-PS1-2

How can we explain another phenomenon, like elephant toothpaste, where gas bubbles appear after combining different substances together?

• Combining different substances may result in forming something new, even inside a closed system.

• Combining different substances forces one of the substances to change to a gas.

• Combining different substances may result in particles rearranging and interacting in different ways.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5