Trigger Sprayer with various size and color available and standard trigger handle and cover option,with a variety of spray nozzle available to spray liquid inside the bottle,for usage of personal care health and liquid cleaner for example of household chemical bottle such as glass cleaning,toilet liquid cleaning and household cleaing products.,Its application range is very wide.The nozzle can be adjusted to create a fine spray or jet stream for dispensing liquids. It's with good design and prevent liquid leakage,can control spray liquid's volume with good spray efforts. Trigger Sprayer Trigger Sprayer，28mm 28/410 Trigger Sprayer，28mm 28/400 Trigger Sprayer，Boom Sprayerjet Trigger Sprayersgarden Sprayer NINGBO LONGTERM INTERNATIONAL TRADE CORP.,LIMTED , https://www.nblongterm.com
Textbook version of the fourth grade under the scientific teaching plan animal reproduction activity teaching design (textbook version) grade four under the scientific teaching plan animal reproduction activity [teaching goals] scientific concept: 1. Some animals reproduce by offspring, some directly Laying small animals; oviposition and fetal birth are the main methods by which animals produce new life. 2. The reproduction of many animals and the reproduction of green flowering plants have something in common, they must be fertilized. Process and method: By observing the picture and reappearing the scene, learn more about the animal's breeding activities and analyze it. Emotions. Attitudes. Values: understand the value of new life and understand the natural laws of the life world. [Educational focus] Reproductive methods of viviparous animals.