Scientific Method
Atoms & Periodic Table
Matter
Matter
Energy
100
Trevor wants to find out how temperature affects plant growth. He thinks that warmer temperatures will promote faster plant growth. Trevor stores four plants of the same type in locations with different temperatures. He keeps everything else the same. Trevor records the growth of each plant every week for 2 months. What is the next step Trevor should? a) analyze his data b) test his hypothesis c) identify the problem d) make his hypothesis .
What is a) analyze his data
100
I have 7 shells and 107 protons and electrons, who am I? a)barium b) silver c) nitrogen d)bohrium
What is d)bohrium
100
In which part of the water cycle does water enter the gaseous state? a) in precipitation b) in condensation c) in evaporation d) in percolation
What is c) in evaporation
100
9. What happens when chemical bonds break and new bonds form? a. A physical change b. A chemical reaction c. Matter is destroyed d. Surface area increases
What is b. A chemical reaction
100
True or False. When the thermal energy of an object increases, the kinetic energy of the atoms in that object decreases. a) true b) false
What is b) false
200
A scientist conducted an experiment to determine how the amount of salt in a body of water affects the number of plants that can live in the water. In the experiment, the responding or dependent variable is A. the amount of salt in the water. B. the temperature of the water. C. the depth of the water D. the number of plants in the water.
What is A. the amount of salt in the water.
200
7. Very energetic particles that move in all directions around the nucleus of an atom, are negatively-charged, and give objects electrical energy are called: a. charges b. neutrons c. electrons d. protons
What is c. electrons
200
If a cube has a side of 3 cm, what is the volume of the cube? a)3cm3 b)6cm3 c)9cm3 d)27cm3
What is d)27cm3
200
Leonard's grandfather has a sample of limonite, or "Fool's Gold", for Leonard's geology collection. Before he gives Leonard the sample though, his grandfather, a well-liked math professor teases him with a question. "I happen to know," Leonard's grandfather tells him, "that this piece of "Fool's Gold" has a mass of 1,500 grams and a volume of 115 cm. If you want this for your collection, you must first tell me what the density of the sample is". Which of the following equations must Leonard use in order to answer his grandfather's question? a)density=mass+volume b)density=volume x mass c)density=mass/volume d)density=volume/mass .
What is b)density=volume x mass
200
What's the difference between potential energy and kinetic energy? a) potential energy is energy that is being used and kinetic is waiting to be used b) potential energy is energy that is waiting to be used and kinetic is being used c) potential energy is energy that vibrates through the air and kinetic is moving energy d) potential energy is moving energy and kinetic is energy that vibrates through the air .
What is b) potential energy is energy that is waiting to be used and kinetic is being used
300
Which of these statements is an example of a good hypothesis? a) The tennis ball rolled 10 meters in 5.8 seconds. b) Copper conducts heat twice as fast as tungsten. c) Did the ancient Egyptians know how to produce electricity? d) The king cobra is the most terrifying snake on Earth. .
What is b) Copper conducts heat twice as fast as tungsten.
300
3. All elements are composed of extremely small particles called a. compounds b. mixtures c. atoms d. molecules
What is c. atoms
300
The density of a substance determines its: a) texture (how the object feels) b) buoyancy (how the object acts when put in water) c)mass (how much matter makes up an object) d) conductivity (how easily heat or electricity passes through an object) .
What is b) buoyancy (how the object acts when put in water)
300
Which of the following is an example of conduction? a) a riptide in the ocean b) burning your hand on an oven rack c) cream sinking to the bottom of a cup of coffee d) your sunglasses blocking UV rays
What is b) burning your hand on an oven rack
300
13. Moving water can be used to produce electricity because a. most forms of energy can be converted into other forms. b. energy cannot be converted into other forms of energy. c. potential energy can be converted into kinetic energy, but kinetic can't be converted to potential. d. kinetic energy can be converted into potential energy, but potential can't be converted to kinetic.
What is a. most forms of energy can be converted into other forms.
400
Kate plays bass in a band. The band practices in the garage that is next to her house, and her parents have begun to complain about the noise. Kate's parents want the band to practice elsewhere, but there is no space available at the other band members' houses. Kate wants to know how she can best block the noise. She finds three different types of insulation and puts them on the garage walls. She puts blankets on one wall, cardboard with spray foam on another wall, and fiberglass insulation on a third wall. She does not cover the wall containing the automatic garage door. Then she asks the singer to go listen from outside each wall while the rest of the band members play their instruments. What is the control? a) the wall with the blankets b) the wall with the cardboard with spray foam c) the wall with fiberglass d) the wall with no insulation
What is d) the wall with no insulation
400
If you add 91 protons and electrons to an atom of Fluorine, what is the new atom that is made?
What is Fermium (Fm)
400
Rubber coating, when wrapped around a wire, acts as which one; when exposed to heat? a) an insulator b) a conductor c)both d) neither
What is a) an insulator
400
In which of the following does a chemical change take place? a) folding a newspaper b) flat ironing curly hair to make it straight c) riding a bike d) lighting a match
What is d) lighting a match
400
15. The law of conservation of energy states that when one form of energy is converted into another. a. energy is destroyed in the process. b. no energy is destroyed in the process. c. energy is created in the process. d. some amount of energy cannot be accounted for.
What is b. no energy is destroyed in the process.
500
Kate plays bass in a band. The band practices in the garage that is next to her house, and her parents have begun to complain about the noise. Kate's parents want the band to practice elsewhere, but there is no space available at the other band members' houses. Kate wants to know how she can best block the noise. She finds three different types of insulation and puts them on the garage walls. She puts blankets on one wall, cardboard with spray foam on another wall, and fiberglass insulation on a third wall. She does not cover the wall containing the automatic garage door. Then she asks the singer to go listen from outside each wall while the rest of the band members play their instruments. What is the problem? a)How can Kate make her parents happy? b) How can Kate best block the noise? c) How can Kate's band play the best music? d) How loud is Kate's bands' music?
What is b) How can Kate best block the noise?
500
How many neutrons are in an atom of Cobalt?
What is 31.93
500
How is it possible that mountain-sized icebergs can float on the surface of the Artic Ocean, instead of sinking? a) the Artic Ocean's water contains less salt than the iceberg's water b) the Artic Ocean's cold temperature allows the iceberg to float c) the density of the Artic Ocean is higher than the densit of the iceberg d) the density of the iceberg is higher than the densit of the Artic Ocean .
What is c) the density of the Artic Ocean is higher than the densit of the iceberg
500
A student has 2 boxes that are the same size. One is full of metal balls. The other is full of foam balls. Which of the following sentences is true? a)the boxes have the same mass and volume b) the boxes have the same mass but different volumes c) the boxes have the same volume but different masses d) the boxes have different masses and different volumes .
What is c) the boxes have the same volume but different masses
500
22. In a nuclear power plant, what is used to change water into steam? a. the burning of natural gas b. geothermal energy c. captured solar energy d. heat released from reactions where the splitting of atoms occurs
What is d. heat released from reactions where the splitting of atoms occurs
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