Chemical Bonds
This type of bond occurs between a metal and a nonmetal.
What is an ionic bond?
This is something you directly observe using your senses or scientific equipment.
What is an observation?
This is the variable that a scientist intentionally changes during an experiment.
What is the independent variable?
The process by which organisms produce new organisms of the same species.
What is reproduction?
This instrument uses lenses and visible light to magnify objects too small to see clearly with the naked eye.
What is a light microscope?
In this type of bond, electrons are transferred from one atom to another.
What is an ionic bond?
An observation that uses numbers or measurements is called this type of observation.
What is a quantitative observation?
This is the variable that is measured or observed in response to a change.
What is the dependent variable?
A seedling gets larger over several weeks as it develops from a young plant into a mature plant. This characteristic of life is demonstrated.
What is growth and development?
This microscope is designed for viewing larger specimens and gives a three-dimensional view.
What is a stereo microscope?
This type of bond occurs between two nonmetals
What is a covalent bond?
An observation that describes characteristics without using numerical measurements is called this type of observation.
What is a qualitative observation?
A student tests whether the amount of sunlight affects plant height. The amount of sunlight is the ________, and plant height is the ________.
What is independent variable; dependent variable.
A living organism must obtain and use energy to carry out its life processes. What biological process describes the chemical reactions involved in obtaining and using that energy?
What is metabolism?
This is the smallest structure capable of carrying out all the processes necessary for life.
What is a cell?
A bond forms between two different nonmetals. The electrons are shared unequally. What type of bond is it?
What is a polar covalent bond?
A student walks into a room and sees that the floor is wet. She says, “Someone must have spilled water.” This statement is an example of this.
What is an inference?
A student conducting a plant growth experiment gives every plant the same type of soil, same amount of water, and same size pot. These are examples of what?
What are control variables?
A living organism is not simply a collection of molecules; its parts are arranged in an organized hierarchy, from cells to tissues to organs and beyond. This characteristic of life is known as this.
What is organization?
A group of similar cells working together to perform a specific function is called this.
What is a tissue?
You look at a bond and determine that it involves two identical nonmetal atoms. What type of bond is it?
What is a nonpolar covalent bond?
This type of statement goes beyond what was directly observed by using observations and prior knowledge to reach a conclusion.
What is an inference?
When displaying quantitative data from an experiment, this type of graph is appropriate when the independent variable is numerical and continuous.
What is a line graph?
A single-celled organism moves away from a harmful chemical in its environment. Which attribute of life is demonstrated?
What is response to stimuli?
This is the highest level of biological organization and includes all life on Earth and the places where life exists.
What is the biosphere?