カラフルな液体で化学実験を若手研究者になります。Hes の手でカラフルな液体のフラスコを保持してそれらを研究し、比較します。実験室実験で液体. - ストックフッテージ＆ビデオ

Young scientist makes chemical experiments with colorful liquid. Hes holding flask with colorful liquid in hands and research it. Laboratory experiments with liquid.

Young scientist makes experiment with liquid. He blows air through a tube and the liquid in flask changes color. Laboratory chemical experiments.

Young scientist makes experiment with liquid. He blows air through a tube and the liquid in flask changes color. Laboratory chemical experiments.

Young scientist makes experiment with liquid. He blows air through a tube and the liquid in flask changes color. Laboratory chemical experiments.

Laboratory assistant and his pupil makes chemical experiments with dry ice. They holding flasks with colorful liquids in hands. The flasks is steaming and young scientists looks after the reaction of

Female pupil in science class experimenting with blue liquid in flask and making notes

Young scientist makes chemical experiments with colorful liquid. Hes holding flask with colorful liquid in hands and research it. Laboratory experiments with liquid.

Young scientist makes experiment with liquid. He blows air through a tube and the liquid in flask changes color. Laboratory chemical experiments.

Young scientist makes experiment with liquid. He blows air through a tube and the liquid in flask changes color. Laboratory chemical experiments.

Young scientist makes experiment with liquid. He blows air through a tube and the liquid in flask changes color. Laboratory chemical experiments.

Laboratory assistant and his pupil makes chemical experiments with dry ice. They holding flasks with colorful liquids in hands. The flasks is steaming and young scientists looks after the reaction of

Young scientist makes chemical experiments with colorful liquid. Hes holding flask with colorful liquid in hands and research it. Laboratory experiments with liquid.