Chemical or Physical Change
A new compound (product) results from a _______ change as the atoms rearrange themselves to form new chemical bonds.
What is chemical
The earth has how many natural satellites
A) 0
B) 1
C) 5
D) 12
What is 1?
The moon.
Which famous scientist introduced the idea of natural selection?
Who is Charles Darwin?
In his book; The Origin of Species
__ 1. Any physical location in which a crime has occurred or is suspected of having occurred is known as a:
A) crime lab B) crime scene.
C) investigation area. D) crime zone.
What is a crime scene?
A crime scene is any location that may be associated with a committed crime. Crime scenes contain physical evidence that is pertinent to a criminal investigation.
Which choice is not a form of matter?
A) Solid B) Gas
C) Liquid C) Color
What is color?
In physics, a state of matter is one of the distinct forms in which matter can exist. Four states of matter are observable in everyday life: solid, liquid, gas, and plasma.
Burning of wood
Chemical change
Creates ash as hydrogen, oxygen, etc... separate from carbon
Which is not a layer of the earth's atmosphere
A) Lithosphere
B) Thermosphere
C) Mesosphere
D) Exosphere
What is the lithosphere?
The lithosphere is the rigid outer part of the earth, consisting of the crust and upper mantle.
Bacterial infections in humans can be treated with what?
What are antibiotics?
The management of microbial infections in ancient Egypt, Greece, and China is well-documented. The modern era of antibiotics started with the discovery of penicillin by Sir Alexander Fleming in 1928.
Any evidence found at a crime scene in the form of a physical object is known as:
A) physical evidence. B) circumstantial evidence. C) objective evidence. D) incriminating evidence
What is physical evidence?
Physical evidence refers to any item that comes from a nonliving origin, while biological evidence always originates from a living being. The most important kinds of physical evidence are fingerprints, tire marks, footprints, fibers , paint, and building materials .
Anything that has mass and takes up space is known in physics as _______
What is matter?
Digesting food
What is a chemical change?
The muscles of the small intestine mix food with digestive juices from the pancreas, liver, and intestine, and push the mixture forward for further digestion. The walls of the small intestine absorb water and the digested nutrients into your bloodstream.
The Gas that makes up most of the earth's atmosphere is
A) Hydrogen B) Oxygen
C) Nitrogen D) Argon
What is Nitrogen?
By volume, dry air contains 78.09% nitrogen, 20.95% oxygen, 0.93% argon, 0.04%
Botany is the study of?
A) Animals B) Plants
C) Microbes D) Sea Life
What is botany?
A botanical garden is filled with....you guessed it...plants.
Your blood type is determined by your ______ , which you inherit from your parents. A) blood cells B) height
C) weight D) genes
What are blood cells?
Human blood type is determined by the presence or absence of certain identifiers on the surface of red blood cells
Which one is not a form of a pure substance
A) Water B) Sugar
C) Air D) Tin
What is Tin?
Water, sugar, and air are a combination of different elements. Tin is just....Tin.
Iron Rusting
What is chemical change?
Rust is an iron oxide, a usually red oxide formed by the redox reaction of iron and oxygen in the presence of water or air moisture.
The earth's interior has how many different layers?
A) 6 B) 5
C) 4 D) 3
What is 4?
Earth is made of concentric layers of rock. From outward to inward, they are the lithosphere, the mantle, the outer core, and the inner core.
What is the name of the process used by plants to convert sunlight into food?
What is photosynthesis?
The process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.
Physical evidence that is found at a crime scene in small but measurable amounts is known as ____ evidence.
A) sample B) primary
C) minute D) trace
What is trace evidence?
At a crime scene, there are often tiny fragments of physical evidence such as hairs, fibers from clothing or carpeting, or pieces of glass that can help solve a crime.
The process of making a conclusion from information provided is best described as a/an:
A) Observation B) Inference
C) Control D) Variable
What is an inference?
Inference is a conclusion reached on the basis of evidence and reasoning.
Melting of an ice cube?
What is a physical change?
Frozen or liquid, water is still H2O
Most freshwater on earth is found in
A) Groundwater (underground rivers and aquifers)
B) Glaciers and icecaps
C) Lakes, rivers, and swamps
D) The Arctic Ocean
What are icecaps and glaciers?
Over 68 percent of the fresh water on Earth is found in icecaps and glaciers, and just over 30 percent is found in ground water. Only about 0.3 percent of our fresh water is found in the surface water of lakes, rivers, and swamps. (and much of the .3 percent is not accessible)
The death of every member of a particular species is known as what?
What is extinction?
The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and recover may have been lost before this point.
The original location of a crime or accident is known as the _____ crime scene.
A) first B) primary
C) preferred D) secondary
What is the primary crime scene?
There can be more than one crime scene. A primary crime scene is the location where the actual crime took place. ... A secondary crime scene is a location that holds evidence of the crime, but it is not the location where the crime was originally committed.
Sound is measured in
A) Joules B) Waves
C) Therms D) Decibels
What are decibels?
Decibels are a unit used to measure the intensity of a sound or the power level of an electrical signal by comparing it with a given level on a logarithmic scale.