<p>Name:______</p><p>Microscope worksheet</p><p>How long was the first microscope?______feet</p><p>In the 1590’s the ______brothers created the first microscope.</p><p>Two scientists that made improvements on the lenses of microscopes were</p><p>______& ______.</p><p>In 1665, Robert Hooke looked at a thin slice of ______and later coined the name cellulae or ______. </p><p>In the early 1700’s Leeuwenhoek looked at______water and called the microscopic organisms “animalcules”</p><p>In 1838, Matthius Schleiden stated all ______are made of cells. </p><p>Theodor Schwann stated all ______are made of cells.</p><p>Robert Brown observed a ______in orchid cells.</p><p>Iist the 3 parts to the cell theory:</p><p>1. ______are the basic unit of life 2. All organisms are composed of ______. 3. All cells come from ______cells.</p><p>Parts of the Microscope </p><p>1. The body tube holds the ______lenses and the ______lens at the proper distance.</p><p>2. The Nose Piece holds the objective lenses and can be turned to change the ______. 3. The ocular or eye lens magnifies the specimen image _____times.</p><p>4. The Objective Lenses increase magnification from ____x to ___x to ___x.</p><p>5. The 2 ______clips hold the slide/specimen in place on the stage.</p><p>6. The Diaphragm controls the ______of ______on the slide/specimen.</p><p>7. The light source projects light upwards through the diaphragm, the specimen and the lenses. Some have ______, and others have ______where you must move the mirror to reflect light.</p><p>8. The arm is used to ______the microscope when carried.</p><p>9. The ______supports the slide/specimen.</p><p>10. The ______adjustment knob moves the stage up and down (quickly) for focusing your image. Never use coarse adjustment under ______power.</p><p>11. The ______knob moves the stage SLIGHTLY to sharpen the image.</p><p>12. The ______supports the microscope.</p><p>Magnification: To determine your magnification…you just multiply the ______or ____ lens by the ______lens</p><p>If the ocular lens is 10x & the objective lens is 40x. The total magnification = ______x. </p><p>The convex lenses of a microscope works by ______light, making the object bigger.</p><p>The hand lens magnifies up to ______x and the stereo microscope up to ______x.</p><p>The stereo uses ______ocular/eye lenses to enhance the specimen, which gives a ______image.</p><p>Electron Microscope Electron microscope uses electrons & can magnify up to ______x.</p><p>Name the two types & function of Electron microscope:</p><p>1.</p><p>2. The Compound Light Microscope</p><p>Ocular or eye lens Course adjustment knob Body tube Fine adjustment knob Stage Diaphragm Arm Objective lens Stag clips Revolving nose piece Light source Base</p>