89 free test tube photos from Freerange

Diversity group of students in protective eyeglasses in science class doing chemical experiment in laboratory. Girl mixing chemistry in test tube. learning and education concept

Chemistry of thin layer chromatography with plate, solvent and samples.

Different colored inorganic chemical salts used in a chemistry lab.

Beaker containing a solution.

Hot plate with beaker and test tubes.

Syringe, vial, and GC capillary column used for separating volatile molecules.

Test tubes in a glass beaker.

Combustion reaction using sucrose to produce caramel and steam.

Scientists or researchers look at multicolor test tubes in science labs. Science, chemistry, biology concept.

Educational concepts and scientists - Little boy poured water in a test tube in a laboratory. Happy child with bigger chemistry isolated on white background.

Chemical reaction in a test tube

A blood drop is being connected to a hand through a tube, symbolizing a medical procedure or blood donation process. The hand is visible holding the tube in a clinical setting.

Scientist using microscope in laboratory with test tube background. Medical healthcare technology and pharmaceutical research and development concept

Science experiment with plant leaves in laboratory

Robotic arm with gears - Automation and artificial intelligence concept

Colorful test tube shaped flower vases pink, white, violet and yellow flowers in front of white background

A nurse in protective gear carefully administering a swab test to a seated male patient

Beaker containing a solution.

A focused healthcare worker with gloves holding a swab and test tube for coronavirus testing

Flask, pipet and hand.

Lead iodide reaction

Test tubes in a beaker.

Scientist in laboratory with holding a test tube. Medical healthcare technology and pharmaceutical research and development concept

Education concept - Little scientists children wearing glasses are experimenting with chemistry in the classroom by looking through the microscope, Science test tube on the side table.

Scientist using microscope in laboratory with test tube background. Medical healthcare technology and pharmaceutical research and development concept

Test tubes in a beaker.

Chemical reaction in a test tube

Scientist in laboratory with holding a test tube. Medical healthcare technology and pharmaceutical research and development concept

Scientists looking through a microscope in a laboratory for analyzing a microorganism sample, and testing chemical reactions for the production of vaccines and various medicines.

Childhood education concept - Girl look at the microscopes in the laboratory. Little scientist in the laboratory is examining the sample in test tube.

Education concept - Little scientists children is looking at erlenmeyer flask containing chemicals to perform experiments in the laboratory, Beaker on the side table.

girls doing science experiments in the lab. Selective focus.

Lead chromate chemical reaction.

Transition metals with periodic table.

Laboratory test tubes.

Chemical test tubes and blood samples in the laboratory.

Laboratory Concept - With Copyspace

Combustion reaction using sucrose to produce caramel and steam.

Educational concepts and science - Smile little girl scientist wear glasses and stood with a microscope. Isolated lab background. Learning and development in childhood.

Colorful test tube shaped flower vases pink, white, violet and yellow flowers in front of white background

Close up of hands pouring water from sampling device to container

Lead chromate chemical reaction.

Combustion reaction using sucrose to produce caramel and steam.

Chemistry glassware

Spotting colored solutions on a thin layer chromatography plate

A scientist is checking and analyzing a cannabis sativa experiment , hemp plant for herbal pharmaceutical cbd oil in a laboratory

Man research scientist is dropper color chemicals into a glass tray at the laboratory.

Medical Doctors Performing DNA Analysis

Rotating centrifuge with sample containers in it.

Chemistry glassware and molecules