Olimpiade Ilmu Pengetahuan Alam Sd

Mempunyai ukuran dan bentuk yang sama dari waktu ke waktu bukan merupakan ciri makhluk hidup karena makhluk hidup cenderung mengalami pertumbuhan dan perubahan bentuk seiring dengan perkembangan dan interaksi dengan lingkungannya.

The correct answer is explaining that the flowers are a stage of development for the mango tree because they will eventually produce fruit, which will then produce seeds for reproduction.

The correct answer is "Kupu, kecoa, lalat." These three animals, namely butterfly (kupu), cockroach (kecoa), and fly (lalat), undergo metamorphosis during their life cycle. Metamorphosis is a biological process in which an animal undergoes a major change in its body structure and form as it develops from an egg to an adult. In the case of these animals, they go through distinct stages such as egg, larva, pupa, and adult, with significant changes occurring at each stage. This process allows them to adapt to different environments and fulfill their ecological roles.

HCl (hydrochloric acid) functions as a killer of germs/bacteria that enter the mouth along with food. It is an important component of gastric juice in the stomach and helps in the digestion process by killing harmful microorganisms that might be present in the food.

The correct answer is "Inti bumi" because the Earth is composed of several layers, and the innermost layer is called the core or "inti bumi." The core is further divided into two parts, the outer core and the inner core. The outer core is liquid, while the inner core is solid and made up of iron and nickel. It is the hottest and densest layer of the Earth.

Hormon dan keturunan adalah faktor internal yang memengaruhi pertumbuhan. Hormon, seperti hormon pertumbuhan, memainkan peran penting dalam mengatur pertumbuhan tubuh. Keturunan juga dapat mempengaruhi pertumbuhan, karena genetika dapat mempengaruhi tinggi badan dan perkembangan fisik seseorang.

The principle of inclined plane is applied to the screw. The screw is a simple machine that consists of an inclined plane wrapped around a cylindrical shaft. When the screw is rotated, it moves through a material, allowing it to be easily inserted or extracted. The inclined plane of the screw allows for a greater force to be applied over a longer distance, making it an efficient tool for lifting or fastening objects.

The correct answer is "Mencerna lemak" which translates to "Digesting fats" in English. Lipase is an enzyme that breaks down fats into smaller molecules, such as fatty acids and glycerol, which can be easily absorbed by the body. This process is essential for the digestion and absorption of dietary fats in the small intestine.

Sumpit menggunakan prinsip pengungkit karena alat ini bekerja dengan memanfaatkan prinsip tuas. Sumpit terdiri dari dua batang yang bisa digerakkan dengan jari tangan. Ketika salah satu batang dipegang dan ditekan, maka batang lainnya akan bergerak dengan kekuatan yang lebih besar. Prinsip ini digunakan untuk memperbesar kekuatan saat menggenggam atau menghentikan benda dengan sumpit.

The correct answer is 4500 C. The Earth's core is estimated to have a temperature of around 4500 degrees Celsius. This high temperature is due to the heat generated by the radioactive decay of elements such as uranium and thorium, as well as the residual heat from the planet's formation. The core's extreme heat plays a crucial role in driving the convection currents that generate the Earth's magnetic field and power geological processes such as plate tectonics.