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MOV001DRF004 001
Close-up of nitrate test kit with water sample indicating high levels of nitrate
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MOV001DRF005 001
Close-up of nitrate test kit with water sample indicating high levels of nitrate
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CAR399BK 001 001
White park maintenance man uses claw of end of hammer as lever to pry nail off wooden park bench at Bret Harte Neighborhood Park, San Rafael, CA
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THN381MN 010 001
Bottle jack props up black car in driveway for tire change V
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HAN475MN 040 001
Close-up of brake on wheel of wheelchair
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CHI071MN 091 001
9-year-old Black girl uses screwdriver to open can of white paint indoor
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TRA461DM 003 001
Large pulley crane is used to transfer sailboat onto water at port
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THN381RB 003 001
Close-up of pulley seen against clear blue sky
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BOA001RRG001 001
View from below the mast of a sailing ship of ropes, pulleys, yardarm and spar
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USH301NPA011 001
Close-up of a pulley on the USS Constitution, Boston, MA
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SCN101TF 258 001
Stroboscopic photograph of tennis ball bouncing from left to right across black surface
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SCN101TF 256 001
Stroboscopic photograph of tennis ball bouncing across black surface
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SCN101TF 264 001
White senior hand holds small hair dryer whose hot air keeps an orange ping pong ball suspended in midair
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SCN101TF 272 001
Four colorful levitating magnets used in science experiment to learn energy state concept
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SCN101TF 270 001
Stroboscopic shot of yellow ball arcing through air against black background
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SCN251TF 039 001
Stroboscopic shot of Hispanic teen boy throwing softball up into air outside
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CAR755RXE017 001
White senior male physics professor writes on chalkboard during lecture on Newton's Law of Universal Gravity, Merritt College, Oakland, CA"
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YNS351RXE002 001
Newton's Law of Universal Gravity on display on chalkboard in physics class, Merritt College, Oakland, CA"
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GAR001DM 022 001
White senior man pushes wheel barrel full of logs in front yard
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AMU401JG 109 001
Multi-ethnic group of people rides roller coaster at VisionLand Magic Adventure Theme Park, Birmingham, AL
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AMU301TF 043 001
Blurred shot of tilted carnival ride spinning in vertical circle at L.A. County Fair, Pomona, CA
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AMU301TF 037 001
Blurred shot of upside down amusement park ride keeping riders in by centrifugal force at L.A. County Fair, Pomona, CA V
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THN401DYW091 001
Studio shot on white surface of colorful top spinning rapidly
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WEA201MN 004 001
Barometer in Filipino teen girl's hand indicates air pressure level in science classroom, Los Angeles, CA
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OCN001BAT002 001
Wave backwash collides with several rock jetties at the Wedge, Newport Beach, CA
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SCN101CYW006 001
Experiment at Museo Inti-Nan shows egg balanced on head of nail due to gravitational pull at equator line, Equador"
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THN141JG 034 001
Gravity clock on exhibit at the Museum of Discovery and Science, Fort Lauderdale, FL
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AMU401JG 022 001
People riding Dueling Dragons roller coaster at Universal Studios turn upside down, Orlando, FL
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SCN201DYW168 001
Hispanic girl wearing flower print dress rolls large marble down wooden ramp on table
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SPT575TF 045 001
Colorful box kite flies in air against blue sky V
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SCN201DYW169 001
Hispanic girl wearing flower print dress rolls large marble down wooden ramp on table
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SCN101RXE005 001
Studio shot on white surface of paper clip floating in glass bowl showing surface tension
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SCN101JAN011 001
Studio shot against purple and white surface of pencil submerged in glass of water to show example of refraction
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SCN201CC 032 001
White boys use magnifying glass to reflect sun's hot ray ignites flame on pavement during science experiment at Neil Cummins Elementary School, Corte Madera, CA
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SCN101TF 365 001
Studio shot on red surface of rock placed into a beaker containing water to demonstrate the principle of displacement
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SCN101TF 364 001
Studio shot on red surface of glass beaker filled with water to approximately 80 ml.
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SCN101TF 370 001
Flashlight beam penetrates graduated cylinder of clear solution, then collides with particles in colloidal suspension (milk in water), becoming visible before being dispersed
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SCN101DYW118 001
Japanese/White toddler boy's green eyes magnified while looking through magnifying glass, Santa Monica, CA
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SCN101TF 116 001
Stop-action photo of distorted blue ball hitting racquetball racket
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SCN101TF 037 001
Studio shot of a straw in a glass measuring cup of water shows how light bends in the water and makes the straw in the water look bigger
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SCN611DYW030 001
Close-up of Fijian boy's eye seen through crystal prism
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SCN101DYW074 001
Studio shot against black surface of wave pulse traveling through string
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SCN101TF 008 001
Studio shot of water arcs from three holes in blue can at different heights seen against red/blue background
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SCN101NVS001 001
Studio shot on black surface of triangular prism refracting light into colors of the rainbow
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SCN201MN 226 001
White boy stands next to fence with stick while Black boy kneels at end of fence listening for sound and vibration
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SCN251MN 047 001
Filipino teen girl records barometer reading for physics experiment in science classroom, Los Angeles, CA
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SCN251MN 046 001
Filipino teen girl records barometer reading for physics experiment in science classroom, Los Angeles, CA
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TES035BD 046 001
Hispanic teen boy and Hispanic teen girls work on an experiment in a Physics class at Hidalgo High School, Hidalgo, TX
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SCN501DYW007 001
Water swirling clockwise down the drain creates a whirlpool effect
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MSM555DRF005 001
Water swirling clockwise down the drain creates a whirlpool effect
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CAR685MN 021 001
Hispanic female science teacher writes scientific formula on dry erase board inside classroom, Los Angeles, CA"
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