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