Scientific Mehtod
A hypothesis is made based on...?
What is observations?
Which subatomic particles are in the nucleus, and which are in the orbitals?
Atomic bonds revolve around which subatomic particle?
What is electrons?
What makes water polar?
What is hydrogen bonds?
A hypothesis must be...?
What is testable and falsifiable?
In an If/then statement what are the experiment variable being discussed?
"If...(____ variable), then... (_____ variable)."
What is independent variable and dependent variable?
The difference between H and H2 is?
What is one extra neutron?
Imagine you have two atoms, and one atom donates a electron to the other. What type of bond is this?
What is ionic bond?
In a water molecule what are the partial charges of oxygen and hydrogen respectively?
What is negative and positive?
From least to greatest, what is the hierarchy of biological organization?
What is organisms, population, communities, ecosystems, and biosphere?
A scientist was observing what honeybees in an open meadow visited most frequently, she recorded that honeybees visited sour smelling flowers over sweet smelling flowers. Based on her results she concluded honeybees must prefer sour odors.
Is this a controlled experiment?
What is no?
An atom contains 18 neutrons and 17 protons. What is its atomic and mass number?
What is an atomic number of 17 and a mass number of 35?
How many valence electrons does atom 1 need to form a bond that shares 3 electrons?
What is 5 valance electrons?
Why does oil not dissolve in water?
What is oil is nonpolar and water is polar?
Like dissolves like.
The molecular geometry of water is?
What is bent?
For an experiment to be credible, results have to be...?
What is repeated and peer reviewed?
How many orbitals does a atom with 17 electrons have?
What is 3 orbitals?
First shell holds 2 electrons, second shell holds 8 electrons, and third shell holds 18 electrons.
To complete its octet, an atom with an atomic number of 11 would make a bond with what type of atom?
What is an atom with a +1 charge?
Atomic number 11 = 11 electrons and 1 valance electrons. Bonding with a +1 charged atom to lose its valance electron.
Are hydrogen bonds a type of covalent bonds?
What is no?
Hydrogen bonds are about attraction between electrostatic forces not the sharing of electrons.
A basic solution has a greater ___ concentration vs ___ concentration
What is hydroxide OH- vs hydrogen H+?
Dr. Elena Martinez of Pacific Coast University studied the navigational abilities of homing pigeons under different light conditions. Pigeons were released in an open field and either exposed to natural daylight or to artificial light that altered the polarization of the sky. The researchers then measured the direction in which the pigeons flew. The experiments were carried out in the early morning, when pigeons typically begin their daily flights.
In the experiment, pigeons flew in one direction when exposed to natural daylight, but in a different direction when exposed to the altered artificial light. What conclusion can be drawn from this?
What is the pigeons’ ability to navigate is influenced by the polarization of light, indicating that they use visual cues from sunlight for orientation?
Fill in the blank
Protons affect an atoms...
Neutrons affect an atoms...&...
Electrons affect an atoms...
What is element, weight/isotope, and charge?
The unequal sharing of elections is what type of bond?
What is polar covalent bond?
Equal sharing = non-polar, unequal sharing = polar. Polarity is based on unequal sharing of electrons because it creates a dipole moment where on atom is partially - and the other partially + which makes a polar molecule.
What are 4 properties of water and what do they mean?
What is cohesion, adhesion, surface tension, heat storage capacity, universal solvent, density, polarity, vaporization?
What are the names of your LAs?
What is Andri'anna and Leonardo?