ชุดสไลด์สำหรับกล้องจุลทรรศน์ หมวดพืช Levenhuk LabZZ P12 Plants Prepared Slides Set 72869

• ประหยัดเวลา! เริ่มสำรวจโลกรอบๆได้ทันทีโดยไม่ต้องใช้เวลาเตรียม slide ด้วยตัวเอง
• ตัวอย่างหมวดพืชรวมถึง พืช (plants) เรณู (pollen) สปอร์ (spores) เยื่อจากสิ่งทอ (textile fibers) ต่างๆ
• เหมาะสำหรับกล้องจุลทรรศน์ที่สามารถมองเห็นวัตถุโปร่งได้ (มีแหล่งจากด้านล่างวัตถุ)
• ตัวอย่างมีการแบ่งออกเป็นประเภทย่อย และติดชื่อไว้อย่างชัดเจน
• ตัวอย่างประเภทเดียวกันถูกรวมอยู่ในสไลด์เดียวกัน เพื่อความสะดวกในการสังเกต เพียงแค่ขยับสไลด์เพื่อส่องตัวอย่างถัดไป
• แผ่นสไลด์และ cover slip คุณภาพสูง มีความใสสูง ไม่เกิดแสงจ้า (glare) หรือเบี่ยงเบนภาพ (distortion) หุ้มกระดาษสีเพื่อบ่งบอกประเภทย่อยของตัวอย่าง
• รวมกล่องกระดาษแข็งทนทานเพื่อเก็บสไลด์ในระหว่างที่ไม่ได้ใช้งาน
• Shipping weight: 0.1 lb (0.04 kg)
• Package size (LxWxH): 3.9×3.1×1.0 in (10×8×2.5 cm)
• แบรนคุณภาพจาก USA 

The large Levenhuk LabZZ Prepared Slides Set includes ready-to-use specimens in a practical colorful box. A child can start exploring the world around them without spending time on preparing slides. You can use this set with any biological microscopes that are designed for observations in the transmitted light (with lower illumination).

All of the specimens are divided into groups by categories and combined into slides so that you can easily move them on the microscope stage. The slides are covered with colored paper that has round transparent slots in it. Each specimen is labeled. The slides are stored in a durable cardboard box.

It takes a lot of time to make your own slides. Moreover, it requires instruments and skills. First, you need to make a slight cut with a microtome, a special instrument with a sharp blade. Then, you need to smooth the cut with a needle on the stage, color if needed, and cover with a cover glass. However, even if you do everything right, the specimen may turn out to be improper for studying, and you will have to start over. Save time and avoid frustrations with ready-to-use microscope slides.

The slides set includes:

Plants

• Peanut stem
• Ficus leaf
• Onion epidermis
• Silver berry hair

Pollen & spores

• Lily pollen
• Pine tree pollen
• Bottle brush spore
• Fern spore

Textile fibers

• Colored threads
• Handmade paper
• Fingerprints
• Bemberg

Usage: General use product. May be used by kids over 3 years old.

Looking for something to start your observations with?

Paramecium caudatum is perhaps one of the first protozoans that a young naturalist would explore. These organisms live in fresh standing water. They can also be found in an aquarium, especially if it hasn’t been cleaned for a long time. My ciliate-shoes were taken from the aquarium. Of course, there are only a few ciliate-shoes in aquarium water – the possibility of finding one of them in your microscope’s eyepiece is extremely low. Therefore, we need to increase their concentration. To do so, take a jar (about 17 fluid ounces or 0.5 liters), fill it with aquarium water, put a small spoiled onion and banana peel inside. Put the jar in a warm dark place for 5 to 7 days (don’t close it with a lid).

 

Paramecium caudatum. Animation. Magnification: 64x.

The average size of Paramecium caudatum is 0.02 inches (0.5 mm). For locomotion Paramecium caudatum uses its cilia (about 15 thousand cilia cover its little body!). Moreover, it has two nuclei (a large macronucleus is responsible for nutrition, respiration, metabolism, etc.; and a small micronucleus – for reproduction). Paramecium caudatum feeds on bacteria or algae. The food is caught by an oral groove covered in cilia and then goes to the cell mouth. It is then digested in the digestive vacuole (gullet). Undigested leftovers are ‘thrown out in the open’ through an anal pore (cytoproct). To remove all excess water, our heroine has two contractile vacuoles. They work like pumps on a boat, pumping excess water out of its body. Paramecium caudatum maintains its slipper-like shape thanks to a special membrane (pellicle).

 

Study this image to learn all parts of Paramecium.

Source: https://www.levenhuk.com/reviews/paramecium/