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Frage 1
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All elements are composed of extremely small particles called
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molecules
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atoms
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compounds
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electrons
Frage 2
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The atomic number of an element is based on the ____________.
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number of electrons
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number of protons
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number of neutrons
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the number of nuclei
Frage 3
Frage
What part of the brain controls memory?
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cerebellum
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cerebrum
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brainstem
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spinal cord
Frage 4
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What is a neuron?
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brain cell
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skin cell
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nerve cell
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blood cell
Frage 5
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The automatic response of the body that occurs rapidly is a
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reaction
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behavior
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breath
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reflex
Frage 6
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Arteries take blood
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to the heart.
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away from the heart to the body.
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to the lungs.
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away from the lungs.
Frage 7
Frage
Veins take blood
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to the heart
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to the body
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to the lungs.
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to the skin.
Frage 8
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Check the boxes that are examples of chemical changes.
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Burning a piece of paper.
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Ripping up a piece of paper.
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Melting ice.
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Baking a cake.
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A nail rusting.
Frage 9
Frage
Check the examples of a physical change.
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Breaking a glass
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Ice melting.
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Baking a cake.
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ripping up a piece of paper.
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A nail rusting.
Frage 10
Frage
In a neutral atom, the number of protons equals the number of
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atoms
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neutrons
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electrons
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nuclei
Frage 11
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Check the boxes of the particles found in the nucleus of an atom.
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electron
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nuetron
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proton
Frage 12
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The powerhouse of the cell is the
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nucleus
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vacuole
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mitochondria
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cell membrane
Frage 13
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Mark all of the correct answers.
The process of photosynthesis takes place
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in an animal cell.
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in a plant cell.
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in a mitochondria
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in a chloroplast.
Frage 14
Frage
Most digestion(processing of nutrients) takes place in the
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stomach
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mouth
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large intestine
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small intestine
Frage 15
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What is the muscular tube that squeezes food down into the stomach called?
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wind pipe
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spinal cord
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esophagus
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colon
Frage 16
Frage
These produce a fluid that enters the mouth and begins digestion of some starches
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salivary glands
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stomach
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liver
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eyes
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