KiwiCo Inc., which offers science and engineering kits for kids, appears to have cut more than 15% of its workforce. The Mountain View-based company laid off 34 workers June 7, Bill Onderdonk, the company's chief operating officer, told the Business Journal. Onderdonk declined to say how many employees KiwiCo had before or after the cuts. But PitchBook Data reported the startup had 201 workers as of May 27, meaning the layoffs would represent about 17% of KiwiCo's employee base. "This action was...