UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13D

Under the Securities Exchange Act of 1934

(Amendment No. )*

SCIENTIFIC INDUSTRIES, INC.

(Name of Issuer)

Brian L. Pessin

Sandra F. Pessin

400 E 51^st St

PH 31

New York, New York 10022

(917) 887-1982

(Name, Address and Telephone Number of Person

Authorized to Receive Notices and Communications)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box. ☐

Note: Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See §240.13d-7 for other parties to whom copies are to be sent.

^* The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

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1	NAMES OF REPORTING PERSONS
	Brian L. Pessin
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP			(a)	☒
				(b)	☐
3	SEC USE ONLY
4	SOURCE OF FUNDS (SEE INSTRUCTIONS)
	PF
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(D) OR 2(E)				☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION
	United States of America
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER
			52,6311
		8	SHARED VOTING POWER
		9	SOLE DISPOSITIVE POWER
			52,631
		10	SHARED DISPOSITIVE POWER
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
	52,631
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)				☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
	0.8%
14	TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
	IN

¹ Consists of 52,631 shares of common stock and warrants to purchase 26,316 shares of common stock at $9.50.

1	NAMES OF REPORTING PERSONS
	Sandra F. Pessin
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP			(a)	☒
				(b)	☐
3	SEC USE ONLY
4	SOURCE OF FUNDS (SEE INSTRUCTIONS)
	PF
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(D) OR 2(E)				☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION
	United States of America
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER
			421,0531
		8	SHARED VOTING POWER
		9	SOLE DISPOSITIVE POWER
			421,053
		10	SHARED DISPOSITIVE POWER
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
	421,053
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)				☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
	6.5%
14	TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
	IN

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² Consists of 421,053 shares of common stock and warrants to purchase 210,526 shares of common stock at $9.50.

This Schedule 13D relates to the common stock, $0.05 par value (the "Common Stock" or the “Shares”)of Scientific Industries, Inc. (the "Issuer"),whose principal executive offices are located at 70 Orville Dr, Airport International Plaza, Bohemia, NY 11716.

This Schedule 13D is being filed by and for Brian L. Pessin and Sandra F. Pessin (each a “Reporting Person”).  Certain information with respect to each Reporting Person is set forth below:

The aggregate purchase price of the 52,631 shares of Common Stock owned by Brian L. Pessin is approximately $249,997.25, including brokerage commissions.  The shares of Common Stock owned by Brian L. Pessin were acquired with personal funds.  The aggregate purchase price of the 421,053 shares of Common Stock owned by Sandra F. Pessin is approximately $2,000,001.75, including brokerage commissions.  The shares of Common Stock owned by Sandra F. Pessin were acquired with personal funds.

The Reporting Persons originally purchased the Shares based on the belief that the Shares, when purchased, were undervalued and represented an attractive investment opportunity.  Depending upon overall market conditions, other investment opportunities available to the Reporting Persons, and the availability of Shares at prices that would make the purchase or sale of Shares desirable, the Reporting Persons may endeavor to increase or decrease their position in the Issuer through, among other things, the purchase or sale of Shares on the open market or in private transactions or otherwise, on such terms and at such times as the Reporting Persons may deem advisable.

The Reporting Persons intend to review their investment in the Issuer on a continuing basis.  Depending on various factors including, without limitation, the Issuer’s financial position and investment strategy, the price levels of the Shares, conditions in the securities markets and general economic and industry conditions, the Reporting Persons may in the future take such actions with respect to their investment in the Issuer as they deem appropriate including, without limitation, communications with management and the Board of Directors of the Issuer, engaging in discussions with third parties about the Issuer, making proposals to the Issuer concerning changes to the capitalization or operations of the Issuer, purchasing additional Shares, selling some or all of their Shares, engaging in short selling of or any hedging or similar transaction with respect to the Shares, or changing their intention with respect to any and all matters referred to in Item 4.

Brian L. Pessin owns 52,631shares of Common Stock of the Issuer, constituting 0.8% of the outstanding shares thereof.  Sandra F. Pessin owns 421,053 shares of Common Stock of the Issuer, constituting 6.5% of the outstanding shares thereof.

Brian L. Pessin has sole voting and dispositive power with respect to the shares of Common Stock he owns directly.  Sandra F. Pessin has sole voting and dispositive power with respect to the shares of Common Stock she owns directly.

Schedule A attached hereto lists all transactions in securities of the Issuer during the past sixty days by the Reporting Persons.  All of such transactions were effected in the open market.

No person other than the Reporting Persons is known to have the right to receive, or the power to direct the receipt of dividends from, or proceeds from the sale of, the shares of Common Stock.

None.

None.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Attention.  Intentional misstatements or omissions of fact constitute Federal criminal violations (see 18 U.S.C. 1001).