Elemental
The first electron shell can hold how many electrons?
Two Electrons
I organize the basic substances that make up all matter. What am I?
The Periodic Table.
This type of change can be reversed and nothing new is formed.
Physical Change
(Fill in the blanks) Plants do cellular respiration to release the energy in glucose made during ____________. However, animals must first ____ _______, then break it down through digestion.
Photosynthesis, eat food.
Ice cores from glaciers and ice sheets can tell us about what?
Earth's atmospheric history (climate, gases)
I have neither a positive or negative charge. What am I?
A Neutron.
The horizontal rows on the periodic table are known as what?
Periods.
If the number of atoms in both sides of a chemical equation, then the equation is what?
Balanced.
Plants use this to convert energy from the sun into usable energy.
Chlorophyll.
This law helps us to determine the age of rocks.
The law of superposition.
Atomic number and I are the same. Who am I?
Four properties of metals are good conduction of electricity, malleability, lustrous, and what?
Ductile.
Color change, formation of a precipitate, gas formation, and an increase or decrease in temperature are examples of what?
Chemical Change.
What are the two products of Photosynthesis?
Glucose and Oxygen.
This type of fossil is a full imprint of an animal.
Mold Fossil.
I contain neutrons and protons and I am also known as the brain or the control center of a cell. What am I?
A Nucleus.
The vertical columns on the table are known as families or what?
Groups.
What type of property can only be observed if you change the object or matter in some way?
Chemical
This is the abbreviation for Adenosine Triphosphate, the usable form of energy for cells.
ATP.
This is a calendar like record that organizes major geologic events and life forms. Scientists gather evidence from rocks and fossils to produce it.
The geologic time scale.
Everything in the universe is made up of these.
Atoms.
The elements along the staircase are called what? Hint: They just haven't figured out who they are.
Metalloids.
States of mass and number of atoms in the reactants equaling the mass and number of atoms in products is an example of what law?
The law of conservation of mass.
This is the name of the organelles in plant and animal cells where cellular respiration occurs to release energy from sugars. What is it?
Mitochondria.
These fossils only existed for a short part of the geologic time. They help predict the relative age of other rocks and fossils.
Index fossils.