4240280
Question 1
Question
All elements are composed of extremely small particles called
Answer
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molecules
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atoms
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compounds
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electrons
Question 2
Question
The atomic number of an element is based on the ____________.
Answer
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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
Question 3
Question
What part of the brain controls memory?
Answer
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cerebellum
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cerebrum
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brainstem
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spinal cord
Question 4
Question
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
Question 5
Question
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
Question 6
Question
Arteries take blood
Answer
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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.
Question 7
Question
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.
Question 8
Question
Check the boxes that are examples of chemical changes.
Answer
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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.
Question 9
Question
Check the examples of a physical change.
Answer
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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.
Question 10
Question
In a neutral atom, the number of protons equals the number of
Answer
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atoms
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neutrons
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electrons
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nuclei
Question 11
Question
Check the boxes of the particles found in the nucleus of an atom.
Answer
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electron
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nuetron
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proton
Question 12
Question
The powerhouse of the cell is the
Answer
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nucleus
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vacuole
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mitochondria
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cell membrane
Question 13
Question
Mark all of the correct answers.
The process of photosynthesis takes place
Answer
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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.
Question 14
Question
Most digestion(processing of nutrients) takes place in the
Answer
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stomach
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mouth
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large intestine
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small intestine
Question 15
Question
What is the muscular tube that squeezes food down into the stomach called?
Answer
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wind pipe
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spinal cord
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esophagus
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colon
Question 16
Question
These produce a fluid that enters the mouth and begins digestion of some starches
Answer
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salivary glands
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stomach
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liver
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eyes