key:
Link to ALL information for a standard
Standard has one or more explicit curriculum alignments 
Standard has one or more CAT-based curriculum alignments 
Standard has one or more SAT-based curriculum alignments 
In grades K-4, what students know and are able to do includes
- asking questions and stating predictions (hypotheses) that can be addressed through scientific investigation;
(Grades K - 4)
In grades K-4, what students know and are able to do includes
- communicating about investigations and explanations.
(Grades K - 4)
In grades K-4, what students know and are able to do includes
- selecting and using simple devices to gather data related to an investigation (for example, length, volume, and mass measuring instruments, thermometers, watches, magnifiers,
microscopes, calculators, and computers);
(Grades K - 4)
In grades K-4, what students know and are able to do includes
- using data based on observations to construct a reasonable explanation; and
(Grades K - 4)
As students in grades 5-8 extend their knowledge, what they know and are able to do includes
- asking questions and stating hypotheses that lead to different types of scientific investigations (for example, experimentation, collecting specimens, constructing models, researching scientific literature);
(Grades 5 - 8)
As students in grades 5-8 extend their knowledge, what they know and are able to do includes
- communicating results of their investigations in appropriate ways (for example, written reports, graphic displays, oral presentations);
(Grades 5 - 8)
As students in grades 5-8 extend their knowledge, what they know and are able to do includes
- creating a written plan for an investigation;
(Grades 5 - 8)
As students in grades 5-8 extend their knowledge, what they know and are able to do includes
- explaining that scientific investigations sometimes result in unexpected findings that lead to new questions and more investigations; and
(Grades 5 - 8)
As students in grades 5-8 extend their knowledge, what they know and are able to do includes
- giving examples of how collaboration can be useful in solving scientific problems and sharing findings.
(Grades 5 - 8)
As students in grades 5-8 extend their knowledge, what they know and are able to do includes
- identifying and evaluating alternative explanations and procedures;
(Grades 5 - 8)
As students in grades 5-8 extend their knowledge, what they know and are able to do includes
- interpreting and evaluating data in order to formulate conclusions;
(Grades 5 - 8)
As students in grades 5-8 extend their knowledge, what they know and are able to do includes
- using appropriate tools, technologies, and measurement units to gather and organize data;
(Grades 5 - 8)
As students in grades 5-8 extend their knowledge, what they know and are able to do includes
- using examples to demonstrate that scientific ideas are used to explain previous observations
and to predict future events (for example, plate tectonics and future earthquake activity);
(Grades 5 - 8)
As students in grades 5-8 extend their knowledge, what they know and are able to do includes
- using metric units in measuring, calculating, and reporting results;
(Grades 5 - 8)
As students in grades 9-12 extend their knowledge, what they know and are able to do includes
- asking questions and stating hypotheses, using prior scientific knowledge to help guide their development;
(Grades 9 - 12)
As students in grades 9-12 extend their knowledge, what they know and are able to do includes
- communicating and evaluating scientific thinking that leads to particular conclusions;
(Grades 9 - 12)
As students in grades 9-12 extend their knowledge, what they know and are able to do includes
- constructing and revising scientific explanations and models, using evidence, logic, and experiments that include identifying and controlling variables;
(Grades 9 - 12)
As students in grades 9-12 extend their knowledge, what they know and are able to do includes
- creating and defending a written plan of action for a scientific investigation;
(Grades 9 - 12)
As students in grades 9-12 extend their knowledge, what they know and are able to do includes
- explaining the difference between a scientific theory and a scientific hypothesis.
(Grades 9 - 12)
As students in grades 9-12 extend their knowledge, what they know and are able to do includes
- identifying major sources of error or uncertainty within an investigation (for example, particular measuring devices and experimental procedures);
(Grades 9 - 12)
As students in grades 9-12 extend their knowledge, what they know and are able to do includes
- recognizing and analyzing alternative explanations and models; and
(Grades 9 - 12)
As students in grades 9-12 extend their knowledge, what they know and are able to do includes
- selecting and using appropriate technologies to gather, process, and analyze data and to report
information related to an investigation;
(Grades 9 - 12)