Vacuum Chambers Vacuum Jar Vacuuming Demonstration Hood Teaching Tools Physics Jar Vacuum Sound Jar with Base for Classroom Laboratory

[Portable and Lightweight]: Conveniently carry the compact and lightweight vacuum jar set for outdoor experiments.[Multiple Experiments]: Use it for boiling hot water experiments, vacuum fountain, evaporation icing, vacuum coating, and more. Enhance students' understanding of physics principles.[Easy Operation]: Simple to use, allowing students to learn better and enjoy their classroom experience.[Premium Pvc Material]: Made of high-quality PVC, the transparent hood clearly demonstrates the electric inside and is easy to check.[Clear Sound]: Place the electric in the jar and hear a clear bell, gradually weakening as the air is pulled out. Students can observe the still ringing without any sound.Spec:Item Type: Vacuum JarMaterial: PVCBattery: 2 x AA battery, shipped without batteries. Package List:1 xVacuum Jar1 x Bell1 x Vacuuming Plate

• [portable and lightweight]: conveniently carry the compact and lightweight vacuum jar set for outdoor experiments.
• [multiple experiments]: use it for boiling hot experiments, vacuum fountain, evaporation icing, vacuum coating, and more. enhance students' understanding of physics principles.
• [easy operation]: simple to use, allowing to learn better and enjoy their classroom experience.
• [premium pvc material]: made of pvc, the transparent hood clearly demonstrates the electric and is easy to check.
• [clear sound]: place the electric in the jar and hear a clear, gradually weakening the is pulled out. can observe the still ringing without any sound.