cbruner
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1st Semester review of 8th grade science concepts.

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Mr. Biever 2015 Science Final

Question 1 of 16

1

All elements are composed of extremely small particles called

Select one of the following:

  • molecules

  • atoms

  • compounds

  • electrons

Explanation

Question 2 of 16

1

The atomic number of an element is based on the ____________.

Select one of the following:

  • number of electrons

  • number of protons

  • number of neutrons

  • the number of nuclei

Explanation

Question 3 of 16

1

What part of the brain controls memory?

Select one of the following:

  • cerebellum

  • cerebrum

  • brainstem

  • spinal cord

Explanation

Question 4 of 16

1

What is a neuron?

Select one of the following:

  • brain cell

  • skin cell

  • nerve cell

  • blood cell

Explanation

Question 5 of 16

1

The automatic response of the body that occurs rapidly is a

Select one of the following:

  • reaction

  • behavior

  • breath

  • reflex

Explanation

Question 6 of 16

1

Arteries take blood

Select one of the following:

  • to the heart.

  • away from the heart to the body.

  • to the lungs.

  • away from the lungs.

Explanation

Question 7 of 16

1

Veins take blood

Select one of the following:

  • to the heart

  • to the body

  • to the lungs.

  • to the skin.

Explanation

Question 8 of 16

1

Check the boxes that are examples of chemical changes.

Select one or more of the following:

  • Burning a piece of paper.

  • Ripping up a piece of paper.

  • Melting ice.

  • Baking a cake.

  • A nail rusting.

Explanation

Question 9 of 16

1

Check the examples of a physical change.

Select one or more of the following:

  • Breaking a glass

  • Ice melting.

  • Baking a cake.

  • ripping up a piece of paper.

  • A nail rusting.

Explanation

Question 10 of 16

1

In a neutral atom, the number of protons equals the number of

Select one of the following:

  • atoms

  • neutrons

  • electrons

  • nuclei

Explanation

Question 11 of 16

1

Check the boxes of the particles found in the nucleus of an atom.

Select one or more of the following:

  • electron

  • nuetron

  • proton

Explanation

Question 12 of 16

1

The powerhouse of the cell is the

Select one of the following:

  • nucleus

  • vacuole

  • mitochondria

  • cell membrane

Explanation

Question 13 of 16

1

Mark all of the correct answers.
The process of photosynthesis takes place

Select one or more of the following:

  • in an animal cell.

  • in a plant cell.

  • in a mitochondria

  • in a chloroplast.

Explanation

Question 14 of 16

1

Most digestion(processing of nutrients) takes place in the

Select one of the following:

  • stomach

  • mouth

  • large intestine

  • small intestine

Explanation

Question 15 of 16

1

What is the muscular tube that squeezes food down into the stomach called?

Select one of the following:

  • wind pipe

  • spinal cord

  • esophagus

  • colon

Explanation

Question 16 of 16

1

These produce a fluid that enters the mouth and begins digestion of some starches

Select one of the following:

  • salivary glands

  • stomach

  • liver

  • eyes

Explanation

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