Attached files

						Exhibit 31.1

                          CERTIFICATION

I, Helena R. Santos, certify that:

1.	I have reviewed this report on Form 10-Q for the quarter
ended March 31, 2013 of Scientific Industries, Inc., a smaller
reporting company (the "Registrant");

2.	Based on my knowledge, this report does not contain any
untrue statement of a material fact or omit to state a material
fact necessary to make the statements made, in light of the
circumstances under which such statements were made, not misleading
with respect to the period covered by this report;

3.	Based on my knowledge, the financial statements, and other
financial information included in this report, fairly present in all
material respects the financial condition, results of operations and
cash flows of the Registrant as of, and for, the periods presented
in this report;

4.	I am responsible for establishing and maintaining disclosure
controls and procedures (as defined in Exchange Act Rules 13a-15(e)
and 15d-15(e) and internal control over financial reporting (as
defined in Exchange Act Rules 13a-15 (f) and 15d-15(f) for the
Registrant and have:
a)	Designed such internal disclosure and procedures, or caused
such controls and procedures to be designed under my supervision, to
ensure that material information relating to the Registrant, including
its consolidated subsidiaries, is made known to me by others within
those entities, particularly during the period in which this report
is being prepared;


b)	Designed such internal control over financial reporting, or
caused such internal control over financial reporting to be designed
under my supervision, to provide reasonable assurance, regarding the
reliability of financial reporting and the preparation of financial
statements for external purposes in accordance with generally accepted
accounting principles;


c)	Evaluated the effectiveness of the Registrant?s disclosure
controls and procedures and presented in this report my conclusions
about the effectiveness of the disclosure controls and procedures, as
of the end of the period covered by this report based on such
evaluation; and


d)	Disclosed in this report any change in the Registrant's
internal control over financial reporting that occurred during the
Registrant's most recent fiscal quarter that has materially affected,
or is reasonably likely to affect, the Registrant's internal control
over financial reporting; and

5.      I have disclosed, based on my most recent evaluation of
internal controls over financial reporting, to the Registrant's
auditors and the audit committee of the Registrant's board of
directors (or persons performing the equivalent functions):


a)      All significant deficiencies and material weaknesses in the
design or operation of internal controls over financial reporting
which are reasonably likely to adversely affect the Registrant's
ability to record, process, summarize and report financial information;
and
b)	Any fraud, whether or not material, that involves management
or other employees who have a significant role in the Registrant's
internal controls over financial reporting.


May 14, 2013


/s/ Helena R. Santos
____________________
Helena R. Santos
Chief Executive Officer and Chief Financial Officer