Islam Guidance

Hearing develops before vision
Hearing is one of the first senses to develop in a fetus. A baby can hear its mother's voice long before it is born. Vision comes at a later stage. This was only known recently. However the Quran insists that God created our hearing before our vision.
[Quran 76.2] We created man from a fertilizing sperm, to test him; and We made him hearing and seeing.
[Quran 23.78] It is He who produced for you the hearing, and the eyesight, and the feelings. But little gratitude you show.
The Quran always refers to the "hearing" before the "seeing" which turned out to be their actual order of creation.
How could an illiterate man who lived 1400 years ago have known that hearing comes before vision???

Ref: Miracles of Quran

Scientific facts in the Quran

Many non-Muslims embraced Islam after they came across several Scientific Miracles in the Qur'an already mentioned 1400 year ago, which Science only discovered in the 20th-century.
Listen to the testimonies of these scientists from their own mouth regarding the Quran, that shocked their minds and even some of these scientists accepted Islam!

"We will show them Our Signs in the universe, and in their own selves, until it becomes manifest to them that this (the Qur'an) is the truth. Is it not sufficient in regard to your Lord that He is a Witness over all things?"
[Qur'an 41:53]

Scientific Miracles of the Quran, The Returning Sky

So we sealed their ears [with sleep] in the cave for a number of years.
(Qur'an, 18:11)
The original Arabic of the phrase "We sealed their ears" in the Qur'an is the verb “daraba”. This bears the metaphorical meaning of "We have made them sleep." Used in reference to the ears, “daraba” means "preventing the ears from hearing." The fact that only the sense of hearing is mentioned here is very significant.
According to recent scientific discoveries, the ear is the only sensory organ active while a person is sleeping. This is why we need an alarm clock to wake up (Kazi, 130 Evident Miracles in the Quran, 108). The wisdom of the phrase "We sealed their ears" is, in all probability, that Allah closed the hearing of the young people in question, for which reason they remained asleep for many years.

Ref: The scientific miracles of the Quran

Glory be to Him Who created all the pairs: from what the earth produces and from themselves and from things unknown to them. (Qur'an, 36:36)
And He creates other things you do not know. (Qur'an, 16:8)
The above verses indicate the existence of life forms unknown to people at the time of the revelation of the Qur'an. Indeed, with the discovery of the microscope, new living things too small to be seen with the naked eye have also been discovered by man. People have therefore begun to learn about the existence of these life forms, indicated in the Qur'an. Other verses which point to the existence of micro-organisms, which are invisible to the naked eye and generally, consist of a single cell, read:
He is the Knower of the Unseen, Whom not even the weight of the smallest particle eludes, either in the heavens or in the earth; nor is there anything smaller or larger than that which is not in a Clear Book. (Qur'an, 34:3)
Not even the smallest speck eludes your Lord, either on earth or in heaven. Nor is there anything smaller than that, or larger, which is not in a Clear Book. (Qur'an, 10:61)
There are 20 times more members of this secret world, which is spread all over the planet, micro-organisms in other words, than there are animals on Earth. These micro-organisms, invisible to the naked eye, comprise bacteria, viruses, fungi, algae and Acarina (mites and ticks). They also constitute an important element in the balance of life on Earth. For example, the nitrogen cycle, one of the fundamental components of the formation of life on Earth, is made possible by bacteria. Root fungi are the most important element in plants being able to take up minerals from the soil. The bacteria on our tongues prevent us being poisoned by food containing nitrates, such as salad stuffs and meat. At the same time, certain bacteria and algae possess the ability to make photosynthesis, the fundamental element in life on Earth, and share that task with plants. Some members of the Acarina family decompose organic substances and turn them into foodstuffs suitable for plants. As we have seen, these tiny life forms, about which we have only learned with modern technological equipment, are essential to human life.
Fourteen centuries ago, the Qur'an indicated the existence of living things beyond those which can be seen with the naked eye. This is another spectacular miracle contained within the verses of the Qur'an.

By: Miracles of the Quran

Allah splits the seed and kernel. He brings forth the living from the dead, and produces the dead out of the living. That is Allah, so how are you misguided? (Qur'an, 6:95)
In the above verse, our attention is drawn to a food cycle of which people at the time of the Qur'an's revelation could have known nothing.
When a living thing dies, micro-organisms quickly cause it to decompose. The dead body is thus divided up into organic molecules that mix with the soil and form the basic source of food for plants, animals, and, ultimately, humanity. Were it not for this nutritional cycle, life would not be possible.
Bacteria are responsible for meeting all living things' mineral and food needs. Plants and some animals, which remain almost dead (hibernation) throughout the winter, revive in the summer and meet all of their mineral and food requirements through the activities of bacteria during the winter. Throughout the winter, bacteria separate organic wastes (i.e., dead plants and animals) and turn them into minerals [Bilim ve Teknik (Science and Technology) 234 (May 1987) 17]. Thus, when living things reawaken in spring; they find food ready and waiting for them. Thanks to bacteria, a "spring cleaning" has been carried out in their environment and the necessary amount of food has been prepared for nature as it returns to life in the spring.
As we have seen, dead creatures play a vital role in the emergence of new ones. This transition, indicated in the Qur'an as "He brings forth the living from the dead, and produces the dead out of the living," is carried out in the most perfect manner. This is one of the proofs that the Qur'an is the Word of Allah.

Source: The Miracles of Quran