U4 The Nature Of Matter: Question Preview (ID: 22397)


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A scientist is examining two atoms. One has a nucleus with 5 protons and 5 neutrons surrounded by 5 electrons. The other has a nucleus with 5 protons and 6 neutrons, surrounded by 5 electrons. What can he conclude about these two atoms?
a) They cannot form compounds. b) They are not made of matter. c) They have different charges. d) They are the same element.
Atoms are made up of smaller particles called subatomic particles. Which is a subatomic particle that has no charge?
a) neutrons only b) protons only c) electrons and protons d) neutrons and protons
Silly Sally Sue needs to make a list of the physical properties of matter. Which of these should Silly Sally Sue include in her list?
a) balance b) thermometer c) graduated cylinder d) temperature
Each of the states of matter has specific characteristics. Which statement correctly describes one of these characteristics?
a) Liquids have definite volume and shape. b) The particles in solids have weak forces of attraction. c) Gases can expand and be compressed. d) Solids flow from one place to another.
Silly Sally Sue's mom boils water in a pot on the stove to make soup. Which of these ingredients will dissolve in the water?
a) pepper b) garlic c) oil d) salt
Which of these conditions has the greatest effect on how quickly a substance changes from one state to another?
a) shape b) color c) light d) temperature
Different elements have different kinds of atoms. How can you tell an atom of one element from an atom of another?
a) the number of protons b) the number of nuclei c) the number of electrons d) the number of neutrons
Billy tested a control solution at room temperature (25*C), and measured how fast salt dissolved in it. Next, he cooled solution A to 10*C and heated solution B to 40*C. How quickly did the salt dissolve in solutions A and B compared to the control?
a) slower for solutions A and B b) slower for solution A and faster for solution B c) faster for solutions A and B d) faster for solution A and slower for solution B
Each state of matter has certain physical properties. Which is a physical property of gas?
a) It has definite shape. b) It can be compressed. c) It has definite texture. d) Its particles vibrate in place.
Which of the following represents a chemical change?
a) chopping wood b) broken window c) fireworks d) waterfall
Billy Joe Bob took a picnic to a sandy beach. He brought a garden salad and lemonade. Which of these best describes sand, a garden salad, and lemonade?
a) solutes b) atoms c) solutions d) mixtures
Billy Bob Joe's father's cousin's mother is cooking dinner. After Billy Bob Joe's father's cousin's mother adds salt to the boiling water, what will she have in the pot?
a) a mixture called a combination b) a solution called a mixture c) a mixture called a solution d) a solution called a combination
Silly Sally Suzy filled 2 balloons with the same amounts of water, sugar, and yeast. She put 1 bowl on a table in her classroom, and the other on a sunny windowsill. Why did Silly Sally Sue observe that the balloon in the window grew larger in size?
a) The classroom table area is the same temperature as the windowsill. b) The classroom table area is warmer. c) The windowsill area is warmer d) The windowsill is cooler.
Billy Bob Joe's uncle's brother put yeast into a bowl of water and added a little sugar. He placed the bowl in a warm place and let it sit. After a while, he observed foam spilling out of the bowl. What kind of change is occurring?
a) geological change b) scientific change c) physical change d) chemical change
Every atom has a center called the nucleus. The nucleus has a positive charge. Which particles are found in the nucleus?
a) neutrons only b) protons only c) electrons and protons d) neutrons and protons
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