Scientific Notation
This is the range of numbers that the first part of a number (base number) in scientific notation must fall between.
1 and 10
Compounds are broken down into their elements through .................................. (physical/chemical) methods
Chemical
This is the first step of the scientific method where you identify what you want to learn or explain.
What is: Asking a question or stating a problem?
What are the 2 main types of Mixtures?
Heterogenous and homogenous mixtures
How many elements are in the periodic table?
A. 100
B. 112
c. 118
D. 120
118
The number of places you move the decimal point determines this part of scientific notation.
A. standard form
B. Exponent
C. Base Number
D. Power of 10
B. Exponent
The properties of a compound are usually ..................................... (similar/different) from the elements it is made up of
Different
A testable statement that predicts the outcome of an experiment is called this.
What is a hypothesis?
Anna poured a small amount of Grape syrup and mixed it with water. What specific type of mixture was made?
Solution
What is the Symbol for Potassium?
K
Write 3,400,000 in scientific notation.
3.4×106
Which of the following is not a compound?
Water (H2O) / Ozone (O3) / Magnesium chloride (MgCl2) / Acetic acid (CH3COOH)
Ozone
In an experiment, this is the factor that you change on purpose to see its effect.
What is the independent variable?
Name one factors that could increase the rate of which a solute/substance dissolve.
Rate of stirring / Temperature / Size of solute
What are the three major groups the elements of the periodic table are divided into?
Metals, Non-Metals, Metalloids
Convert 5.6×10−3 to standard form.
0.0056
The chemical formula NaCl represents a commonly known substance. What is it?
Table salt
After collecting data, scientists do this to determine if their hypothesis was supported or rejected.
What is analyzing results or drawing a conclusion?
Describe a suspension.
A suspension is a heterogeneous mixture that separates into layers over time.
The elements of the periodic table are arranged according to their:
A. Mass number
B. Atomic number
C. Proton number
D. Neutron number
Atomic number
Write the scientific notation for 0.000000000015
1.5×10−11
The chemical formula for glucose is C₆H₁₂O₆. How many atoms are in one molecule of glucose?
24 atoms.
This step involves sharing your findings with others through reports, presentations, or publications.
A. Observation
B. communicating results
C. Peer discussion
D. Hypothesis
communicating results
Name two factors that need to be kept constant when investigating the effect of temperature on rate of dissolving of sugar in water
Volume of water / Mass of sugar / Rate of stirring/ time taken for experiments
Who invented the Periodic Table?
A. Jeffery Dahmer
B. Dmitri Mendeleev
C. Socrates
D. Thomas Jefferson
Dmitri Mendeleev