Quantitative observations with Microscopes

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Presentation transcript:

Quantitative observations with Microscopes

Estimating a Measurement Start point = zero 1 mm Size of bee? 4.7 mm

Estimating a Measurement How big is the apple? 0.5m 1m

Estimating a Measurement How big is the apple? 0.33m 1m

Estimating a Measurement How big is the computer? 0.50cm 50cm

Estimating a Measurement How big is the ball? 0.25cm 50cm

Measuring using a Microscope Field of View/Vision- circular area seen when looking into eyepiece 40x = 100x = 400x = 4.5 mm 2 mm 0.5 mm

This organism is being observed under 400x, what is it’s size? 0.25 mm Hint: What is the size of the diameter of the field of view at 400x? If this organism was being observed under 40x instead, what is it’s size? 2.25 mm

40x SMILEY FACE ( )

Making a Scientific Drawing __________________________________

Scientific Drawings Views Purpose: allow scientists to share data in an efficient, meaningful way Views Dorsal: from above, backside of organism Lateral: from the side Ventral: from below, underside of organism Anterior: from front, forward facing Posterior: from behind, rear of organism __________________________________ Field of View/Vision- circular area seen when looking into eyepiece

Scientific Drawings - Guidelines