Dolejsi's Review

The chemical equation shown below represents a reaction that produces fuel for cars.

CO + H₂O --> CO₂ + H₂

_{How many elements are found in the chemical equation above?}

• 5

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

Sam is visiting the desert. He is standing beside a cactus watching a snake move across the sand. There is a lizard basking in the sun on a rock nearby. Which of the following correctly identifies the biotic and abiotic parts of the ecosystem?

• Abiotic: Rock, Sand, Sun

  Biotic: Cactus, Lizard, Sam, Snake

• Abiotic: Cactus, Lizard, Sam, Snake

  Biotic: Rock, Sand, Sun

• Abiotic: Cactus, Rock, Sand, Sun

  Biotic: Lizard, Sam, Snake

• Abiotic: Cactus, Rock, Sam

  Biotic: Lizard, Sand, Snake, Sun

Tags

NGSS.MS-LS2-3

How many elements are in H₂SO₄?

• 1

• 7

• 8

• 3

Tags

NGSS.MS-PS1-1

A group of students used this chart to classify three organisms into different kingdoms.

Which characteristic should replace the Y?

• Prokaryota

• Heterotrophic

• Autotrophic

• Herbivore

Which of the following is a chemical change?

• Silver spoon tarnishing

• Sugar cube dissolving in water

• Ice melting

• Mixing cereal and marshmallows

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which kingdom would the mushroom be classified in?

• Protista

• Plantae

• Animalia

• Fungi

Tags

NGSS.MS-LS4-2

Which of the following is a chemical change?

• Paper tearing

• Sanding wood

• Water separating into hydrogen and oxygen

• Glass breaking

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What key characteristics do plant and animal cells share that classifies them both into domain Eukarya?

• Both plant and animal cells contain DNA

• Both plant and animal cells have a nucleus

• Both plant and animal cells contain cytoplasm

• Both plant and animal cells are essential for life

Tags

NGSS.MS-LS4-2

What basic characteristic divides the organisms in Kingdom A from Kingdom B?

• The organisms in Kingdom A are all multicellular and those in Kingdom B are unicellular.

• The organisms in Kingdom A are all unicellular and those in Kingdom B are multicellular.

• The organisms in Kingdom A are all autotrophic and those in Kingdom B are heterotrophic.

• The organisms in Kingdom A are all heterotrophic and those in Kingdom B are autotrophic

Tags

NGSS.MS-LS1-1

Which description correctly describes eukaryotic and prokaryotic cells' DNA?

• Eukaryotic: present and located in the nucleus

  Prokaryotic: present and located in the nucleus

• Eukaryotic: present and located in the nucleus

  Prokaryotic: not present and it is free floating

• Eukaryotic: not present and located in the nucleus

  Prokaryotic: present and located in the nucleus

• Eukaryotic: present and located in the nucleus

  Prokaryotic: present and it is free floating