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
September 30, 2011 of Scientific Industries, Inc., a smalller 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.

October 27, 2011

/s/ Helena R. Santos
____________________

Helena R. Santos
Chief Executive Officer and Chief Financial Officer