What is life/science
What is the lowest level of organization that can perform all activities required for life?
Cell
What are the three components of an atom and the corresponding charges?
Proton (positive), neutron (neutral), electron (negative)
What is the term for the tendency of water molecules to stick to one another?
Cohesion
What is the term for the process by which a cell or organism maintains internal equilibrium?
Homeostasis
What is the maximum number of electrons held in the first electron shell?
2
Why does ice float?
Ice is less dense than water
Name the term for when only one parent is involved and the offspring are genetically identical to the parent
Asexual reproduction
What is the name for the shell farthest from the nucleus?
Valence shell
What are the two mechanisms that allow water molecules to “climb” from a tree’s roots to its highest leaves?
Cohesion and adhesion
What is the difference between a hypothesis and a prediction?
A hypothesis is a possible explanation for an observation, and is broad. A prediction is specific to an experiment and is typically formatted as an "if__then" statement.
What are the four elements that make up 96% of
matter in living organisms?
What is the measure of how hard it is to break the
surface of a liquid
Surface tension
Name the 3 of the 5 fundamental characteristics of life
2. Energy use
3. Maintenance of internal constancy
4. Reproduction/growth/development
5. Evolution
Why does ionic bonding sometimes happen between two atoms instead of covalent bonding?
When the electronegativities of the two atoms are very different.
OR
When electrons are completely transferred to one of the atoms.
Name one of the two categories of hydrophilic (water-loving) substances that water can dissolve
Polar solutes and ions