5 Point Questions

Choose the order in which your table will answer all questions. This order must be the same throughout the entire game.

1. It is important to understand the differences between chemical and physical changes. Chemical changes result in new substances, but physical changes do not. Which process is an example of a physical change?

A.Water turns to steam when boiled over a stove.B.Carbon combines with oxygen to form carbon dioxide gas.C.Water breaks down into hydrogen and oxygen gases over time.D.Limestone breaks down into lime and carbon dioxide when heated.

1. ANSWER It is important to understand the differences between chemical and physical changes. Chemical changes result in new substances, but physical changes do not. Which process is an example of a physical change?

*A. Water turns to steam when boiled over a stove. -----ALL changes in state are physical b/c they can easily convert back into the original substance!B. Carbon combines with oxygen to form carbon dioxide gas.C. Water breaks down into hydrogen and oxygen gases over time.D. Limestone breaks down into lime and carbon dioxide when heated.

2. Which types of changes observe the law of conservation of mass?

A. only changes of stateB. only physical changesC. only chemical changes D. physical changes and chemical changes

2. ANSWER Which types of changes observe the law of conservation of mass?

A. only changes of stateB. only physical changesC. only chemical changes*D. physical changes and chemical changes

3. The diagram below shows a type of change in matter at the particle level. Study it closely.

Based on what you know about changes in matter, which type of change does the diagram show?

A.a change in massB.a physical changeC.a chemical changeD.a change in reaction

3. ANSWER The diagram below shows a type of change in matter at the particle level. Study it closely.

Based on what you know about changes in matter, which type of change does the diagram show?

A. a change in mass*B. a physical change (Change in state from gas to solid) C. a chemical changeD. a change in reaction

4. Which process is an example of a chemical change?A.a yellow liquid combining with a blue liquid and it turns dark purple.B.bath water cooling while you take a bath

C.a piece of metal being heated until it expandsD.a glass window breaking when hit with a baseball

4. ANSWER Which process is an example of a chemical change?* A) a yellow liquid combining with a blue liquid and it turns dark purple. B) bath water cooling while you take a bath C) a piece of metal being heated until it expands D) a glass window breaking when hit with a baseball

5. Lucas adds a piece of solid zinc metal to a beaker of hydrochloric acid (HCl). He identifies the products as zinc chloride and hydrogen gas. Which process took place in the beaker?

A.evaporationB.condensationC.a physical changeD.a chemical change

5. ANSWER Lucas adds a piece of solid zinc metal to a beaker of hydrochloric acid (HCl). He identifies the products as zinc chloride and hydrogen gas. Which process took place in the beaker?

A. evaporationB. condensationC. a physical change*D. a chemical change

6. In the last question, Lucas added a piece of solid zinc metal to a beaker of hydrochloric acid and zinc chloride and hydrogen gas were what was left. What were his reactants and what was/were his product(s)? A. Reactants Zn and HCl/ Products ZnCh +HB. Reactants ZnCh +H / Products Zn and HClC. Reactants Zn and HCl/ Products ZnCl +H2

D. Reactants ZnCl +H2 / Products Zn and HCl

6. ANSWER In the last question, Lucas added a piece of solid zinc metal to a beaker of hydrochloric acid and zinc chloride and hydrogen gas were what was left. What were his reactants and what was/were his product(s)? A. Reactants Zn and HCl/ Products ZnCh +HB. Reactants ZnCh +H / Products Zn and HCl*C. Reactants Zn and HCl/ Products ZnCl +H2

D. Reactants ZnCl +H2 / Products Zn and HCl

7. The pictures below show four objects—a paper clip, a pair of scissors, a needle, and a horseshoe. Assume that each object is made of the same metal.

Which of these physical properties is not similar in all four of these objects?

A. massB. magnetismC. melting pointD. electrical conductivity

7. ANSWER The pictures below show four objects—a paper clip, a pair of scissors, a needle, and a horseshoe. Assume that each object is made of the same metal.

Which of these physical properties is not similar in all four of these objects?

*A. mass B. magnetism C. melting point D. electrical conductivity

8. What do elements, molecules, compounds have in common?

A. They are all made up of mixtures.B. They are all made up of pure substancesC. They can all be broken down by physical changes.D. They are all found on the periodic table.

8. ANSWER What do elements, molecules, compounds have in common?

A. They are all made up of mixtures. * B. They are all made up of pure substances C. They can all be broken down by physical changes. D. They are all found on the periodic table.

9. The diagram shows the three states of matter.

What state of matter is shown in container 3?

A. air B. gasC. liquidD. solid

9. ANSWER The diagram shows the three states of matter.

What state of matter is shown in container 3?

A. air We don’t know it is air, and air is not a state of matter*B. gas Farthest apart!!!C. liquid Beaker 1 D. solid Beaker 2

10. An atom of the element gallium (Ga) has 31 protons and 39 neutrons. What is the atomic number of gallium?

A. 8 B. 31C. 39D. 70

10. ANSWER An atom of the element gallium (Ga) has 31 protons and 39 neutrons. What is the atomic number of gallium?

A. 8*B. 31C. 39D. 70

11. The entry for one element in the periodic table is shown below.

How many neutrons would be found in ONE atom of this element?

A. 20B. 40.078 C. -20D. .078

11. ANSWER The entry for one element in the periodic table is shown below.

How many neutrons would be found in ONE atom of this element?

*A. 20B. 40.078 C. -20D. .078

10 Point Questions

1. Belinda makes a sugar solution, as shown below.

How much sugar did Belinda dissolve in the water?On your boards, explain how you knew…A. 9 gB. 13 gC. 11 gD. 17 g

___g Sugar 46 g Water 59 g Sugar Solution

1. ANSWER Belinda makes a sugar solution, as shown below.

How much sugar did Belinda dissolve in the water?A. 9 g*B. 13 g Law of conservation of mass/matterMatter cannot be created nor destroyed, so 46 g + ___g = 59g C. 11 gD. 17 g

___g Sugar 46 g Water 59 g Sugar Solution

2. A molecule is involved in a chemical reaction, causing the arrangement of its atoms to change. What is the result of this process?

A.New atoms are formed.B.The mixture is separated into its component parts.C.A different molecule with different properties is formed.D.Bonds are neither formed nor broken, so mass is conserved.

2. ANSWER A molecule is involved in a chemical reaction, causing the arrangement of its atoms to change. What is the result of this process?A. New atoms are formed.B. The mixture is separated into its component parts.*C. A different molecule with differentproperties is formed.D. Bonds are neither formed nor broken, so mass is conserved.

3. In a chemical reaction, energy can be wasted and heat is given off after the reaction has occurred. This means that the product has less energy than that of the reactants. This type of reaction is known as ___________________.

3. ANSWER In a chemical reaction, energy can be wasted and heat is given off after the reaction has occurred. This means that the product has less energy than that of the reactants. This type of reaction is known as an EXOTHERMIC REACTION.

An ENDOthermic reaction, takes in heat from its surroundings as it reacts. Ie., the alkaselzer tablet took in the heat of the water to react. This mean the temperature AFTER the reaction actually dropped.

4. Some properties are the same in a substance no matter the amount of the substance. Which of the following characteristics does not change based on the amount of the substance?

A. massB. volume C. boiling pointD. weight

4. ANSWER Some properties are the same in a substance no matter the amount of the substance. Which of the following characteristics does not change based on the amount of the substance?

A. massB. volume *C. boiling point (known as a characteristic property)D. weight

5. What is happening to the STRENGTH OF PHYSICAL ATTRACTIONS among particles as an ice cube melts into liquid water? EXPLAIN on your board.

A. It is remaining constant.B. It is doubling.C. It is increasing slowly. D. It is decreasing.

5. ANSWER What is happening to the STRENGTH OF PHYSICAL ATTRACTIONS among particles as an ice cube melts into liquid water?

A. It is remaining constant.B. It is doubling.C. It is increasing slowly.*D. It is decreasing. Solid to liquid…bonds are gaining energy and moving more in a liquid than a solid, spreading apart.

6. The diagram below shows what happens during the formation of a compound molecule. The diagram shows two substances joining together to form a third substance.

Which of these substances is a compound?A. AB. B C. CD. both B and C

6. ANSWER The diagram below shows what happens during the formation of a compound molecule. The diagram shows two substances joining together to form a third substance.

Which of these substances is a compound?A. AB. B* C. CD. both B and C

7. Several questions ago, Lucas added a piece of solid zinc metal to a beaker of hydrochloric acid and zinc chloride and hydrogen gas were what was left. You determined that the reactants were Zn and HCl and the products were ZnCl and H2

Write the equation and balance it.

7. ANSWER Several questions ago, Lucas added a piece of solid zinc metal to a beaker of hydrochloric acid and zinc chloride and hydrogen gas were what was left. You determined that the reactants were Zn and HCl and the products were ZnCl and H2

Write the equation and balance it.

2Zn + 2HCl 2ZnCl + H2

Zn = 1 (2) Zn = 1 (2)H = 1 (2) H = 2 (2)Cl = 1 (2) Cl = 1 (2)

8. Several questions ago, Lucas added a piece of solid zinc metal to a beaker of hydrochloric acid and zinc chloride and hydrogen gas were what was left. You determined that the reactants were Zn and HCl and the products were ZnCl and H2

The unbalanced equation looks like this: Zn + HCl ZnCl + H2

Which type of chemical reaction is this? A) Combination (synthesis) B) DecompositionC) Single Replacement D) Double Replacement

8. ANSWER Several questions ago, Lucas added a piece of solid zinc metal to a beaker of hydrochloric acid and zinc chloride and hydrogen gas were what was left. You determined that the reactants were Zn and HCl and the products were ZnCl and H2

The unbalanced equation looks like this: Zn + HCl ZnCl + H2

Which type of chemical reaction is this? A) Combination (synthesis) Zn + HCl ZnHCl B) Decomposition Zn + HCL Zn + H + Cl*C) Single Replacement A + BC AC + B D) Double Replacement Not enough reactants/products for AB + CD AC + BD

9. Freezing temperatures can destroy citrus crops. Citrus growers sometimes spray water on the fruit to protect it from freezing. How can spraying the trees with water protect the fruit?A. The temperature of the water changes as it freezes. B. The water releases energy to itssurroundings as it freezes.C. The water takes in energy from itssurroundings as it freezes.D. Ice coats the fruit, protecting it from cold air.

9. ANSWER Freezing temperatures can destroy citrus crops. Citrus growers sometimes spray water on the fruit to protect it from freezing. How can spraying the trees with water protect the fruit?A. The temperature of the water changes as it freezes. *B. The water releases energy to itssurroundings as it freezes.C. The water takes in energy from itssurroundings as it freezes.D. Ice coats the fruit, protecting it from cold air.

10. The diagram shows the three states of matter.

Which diagram shows the state of matter in which particles take on the shape, but not volume, of their container?

A. 1B. 2C. 3D. Both 1 and 3

10. ANSWER The diagram shows the three states of matter.

Which diagram shows the state of matter in which particles take on the shape, but not volume, of their container?

*A. 1 A liquid cannot take the volume….it is fixed. B. 2C. 3 **A GAS could take on both shape and volume as it expands. D. Both 1 and 3

Which pair of objects has the same speed, but different velocities?

5 bonus point for explaining how you knew—Address both speed and velocity

Which pair of objects has the same speed, but different velocities? C

Arrows are the SAME SIZE (Same Speed) and pointing DIFFERENT DIRECTIONS (Different Velocity).

Newton’s 1st Law states A. An object will change velocity if it

is pushed or pulled upon (Force = Mass x Acceleration)

B. An object at rest tends to stay at rest and an object in motion tends to stay in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

C. For every action there is an equal and opposite reaction.

Newton’s 1st Law states A. An object will change velocity if it is pushed or

pulled upon (Force = Mass x Acceleration)B. An object at rest tends to stay at rest and an

object in motion tends to stay in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

C. For every action there is an equal and opposite reaction.

You are riding in a car. All of a sudden, your mom very quickly turns right. However, your body wants to continue in the direction that you were initially driving so you lean. Which one of Newton’s Law explains why you lean?

You are riding in a car. All of a sudden, your mom very quickly turns right. However, your body wants to continue in the direction that they were initially driving so you lean. Which one of Newton’s Law explains why you lean? 1st Law (Inertia is the tendency to continue in the original direction at the original speed).

You and a friend are pushing two boxes across the room. Your box is twice as heavy as your friends.

Who is able to accelerate faster? Which one of Newton’s laws explains this?

You and a friend are pushing two boxes across the room. Your box is twice as heavy as your friends.

Who is able to accelerate faster? Your Friend

Which one of Newton’s laws explains this? 2nd

An object weighs 160 N. What is its mass?

An object weighs 160 N. What is its mass?

F = MA 160 N = ___x 9.8 m/s

Mass = 16.3 Kg

1. Which indicates a constant speed? 2. Which car accelerated (and speed always

increased)? 3. Which shows slow speed then a drastic

positive acceleration and then negative acceleration?

1. Which indicates a constant speed? B

2. Which car accelerated (and speed always increased)? C

3. Which shows slow speed then a drastic positive acceleration and then negative acceleration?

4. A

Below are 3 equations that you will need to know for Honors/AP Biology. Can you identify the reactants and the products? Do you know what they are?

Below are 3 equations that you will need to know for Honors/AP Biology. Can you identify the reactants and the products? Do you know what they are?

Most of the plant and animal cells use aerobic respiration. On the other hand, anaerobic bacteria, yeast cells, prokaryotes, and muscle cells perform anaerobic respiration. ANAEROBIC does NOT have OXYGEN as a reactant like the above AEROBIC *See prior slide.

20. The following formula is that of Photosynthesis. Determine the final PRODUCT. Balance the equation.

20. ANSWER The following formula is that of Photosynthesis. Determine the final PRODUCT. Balance the equation.

*Needed 12 more Oxygen atoms (6 O2 molecules)!

6O2

Oxygen

20 Point Questions

Explain the difference between an ionic bond and a covalent bond. Include an example of each and show why they are bonding using their electrons (use correct term)…..DRAW either Bohr Models or Lewis Dot Structures.

An Ionic Bond is a bond shared between a metal and a nonmetal. The nonmetal steals an electron and then causes both itself and the metal to be an ion (due to charge). For example: NaCl

Na has 1 valance electron; Cl has 7. In order to fill it’s second valence shell (energy level), Cl steals Na’s valance electron. This makes Cl an anion (because it has 1 more electron than proton) and Na a cation because it has 1 less electron than proton.

Lewis Dot Explanation

*Octet rule is filling

shells with 8 valence

electrons.

In a covalent bond, the non-metals must share valence electrons in order to fill their valence shells. All atoms are then happy, no one is charged!

It is called an average atomic mass because an element can have different isotopes. Each isotope has a different number of neutrons in its nucleus. Therefore each isotope has a different atomic mass.

The average atomic mass is the weighted average mass of all the isotopes. To find the average atomic mass, each naturally occurring isotope is identified. Each isotope of the element takes up a certain percentage of the element found naturally. These percentages are then used to make a weighted average.

The element lithium (Li) has an atomic mass of 3 and a mass number of 7.

Explain how you know that the diagram above represents a lithium atom.

The element lithium (Li) has an atomic mass of 3 and a mass number of 7. Explain how you know that the diagram above represents a lithium atom.

The diagram shows an atom that has 3 protons and 4 neutrons. Because the atomic mass of an atom is equal to the number of protons in the atom (3 for lithium) and the mass number of an atom is equal to the number of protons plus the number of neutrons in the atom (7 for lithium), the diagram can be recognized as representing lithium.

Explain the difference between Mass and Weight.

Explain the difference between Mass and Weight.

Mass is simply the amount of matter in an object (measured in grams or Kilograms). Weight is the amount of gravity (force) being placed on that mass. It is measured in Newtons if mentioned as a force.