Knowledge Bowl Round 1
D
Equus ferus caballus
White
What is represented by number 1? Nitrogen
Silver Chloride + Sodium Nitrate
What color does an acid turn litmus paper? Red
A triple beam balance is used to determine the _________________ of an object. Mass
71 grams
What does the law of conservation of mass state? Matter cannot be created nor destroyed
Salt forming from the mixing of two liquids is what type of change? Chemical Change
What is the most abundant gas in the atmosphere? Nitrogen
3 grams/cubic centimenter
3
Which molecular arrangement best represents a liquid? 2
Battery/Power Source
Class Chondrichthyes
Hernando ran an electric current through a beaker of distilled water and separated the water into the gases H 2 and O 2. What type of change did he produce? Chemical Change
O, Na, and H are examples of? Elements
What do a rabbit, car, and tree have in common? All are made of atoms
Glucose and Oxygen
What is the pH of an Acid? 0-7
Kr
What can be done to make this electromagnet stronger? Increase the number of coils
What tool is used to measure weight in Newtons? Spring Scale
What keeps the moon in orbit around the Earth? Gravity
What is assistive bioengineering? Bioengineering that helps an organism
What is represented by number 3? Oxygen
Electromagnet
Level 5
Charity was measuring a sample of copper to determine its density. The sample had a mass of 27 grams and a volume of 3 cubic centimeters. What is the density of copper? 9 grams/cubic cm
Tamarack
Carrie tests the stream behind her house each year to find out if the water quality has changed. This year, the water in the stream had a pH of 6.0 according to the pH meter. What describes the pH of the water in the stream? Acid
On the periodic table, chromium has the symbol Cr, an atomic number of 24, and a mass number of 52. How many protons does chromium have? 24
What object is in the youngest layer? Fish
H 2 0, NaCl, and NaOH are all examples of? Compounds
In what state of matter are the molecules far apart and constantly moving at high speeds? Gas
1