(1) First Unit Factory

1. In the form of group participation or individual participation, the experience of observing trees and leaves is obtained according to certain observation contents and observation order.

2. I have the experience of observing big trees after class, and I can exchange my findings in groups or classes.

3, can say the common leaf shapes, collect a variety of leaves planted in various places, and make specimens, including leaf paintings.

4. Summarize woody plants and herbs, terrestrial plants and aquatic plants.

5、? Students have the performance and consciousness of caring for trees in activities.

Unit 2 Animals

1, through feeding observation, understand the living habits of snails, earthworms, ants, goldfish and other small animals, and form a preliminary understanding of the similarities and differences of animals.

2. Ask questions while observing. The experience of discovering more observations.

3. Experience in trying to improve observation methods.

4. After class, you can write an observation record of small animals or read relevant materials to write a compiled tabloid.

(3) Unit 3 "Materials around us"

1. Observe six common materials and summarize their characteristics.

2. Know metal, understand the concept of hardness, learn the story of beverage cans, and understand the manufacturing process of metal products.

3. Through the experiment of the ups and downs of objects in water, the concept of material density is preliminarily understood.

4. Learn to classify materials.

Unit 4 Water and Air

1. Investigate your daily water consumption.

2. Investigate the containers and capacities of water and other daily liquids.

3. Research experiment of water injection into beverage bottles.

4. Through the needle experiment, we know that air also occupies volume.

5, doing experiments with balloons and pen caps, we know that air has quality.

Extended data:

Science refers to learning by subject, and later refers to learning all kinds of knowledge (such as mathematics, physics, chemistry, etc.) through careful classification. ) form a gradually complete knowledge system. It is a knowledge about the practice of discovery, invention and creation, and it is the general name of the knowledge system for human beings to explore, study and understand the changing laws of everything in the universe.

Science is an orderly knowledge system based on testable explanation and prediction of the form and organization of objective things. In an ancient and closely related sense, "science" also refers to the discipline itself that can reasonably explain and reliably apply knowledge. Professional practitioners of science are customarily called scientists.

Since the classical times, science, as a kind of knowledge, has been closely linked. Scientific methods laid the foundation, emphasizing the reproducibility of experimental data and its results. In the early modern western world, "science" and "natural philosophy" can sometimes be used interchangeably. In the western world, until the 7th century, natural philosophy (which later became natural science) was regarded as an independent branch of philosophy, with the same origin as materialism.

References:

Science-Baidu Encyclopedia