Comprehensive review materials for elementary school graduation (Civics, Science, Music, Art, PE)

I am a science major drop

Here first paste the 3rd grade, because the word count is too much, you can send it to you if you want

Three review materials

Unit 1 Plant Review Outline

1, (see), (listen), (touch), (ask), (measure) and other methods are the basic methods of scientific observation.

2. In the process of experiencing observation activities, students (learn to learn learning methods such as cooperative group learning), (communication), (expression), (discussion) and (recording).

3. Large trees can be characterized by the (height) of the tree, the (shape) of the crown, the (thickness) of the trunk, the (look) of the bark and the (look) of the leaves.

4. Grass has the same **** characteristics of (living organisms) as big trees.

5. The main differences between the big tree and the grass are: the (height) of the plant, the (thickness) of the stem, and the (texture) of the stem.

6, big trees and grass **** the same point is: both grow in (soil), both have (green) leaves, both will (flower and fruit), both need (water), (sunlight) and (air).

7, water hyacinth petiole parts of the expanded sponges filled with (air) is floating on the water surface.

8, aquatic plants have (root), (stem), (leaf) and other organs. They need (water), (sunlight) and (air) to grow.

9, aquatic plants are (water hyacinth), (goldfish algae), (water peanuts), (floating weeds) and so on.

10, water hyacinth and dogwood have the same points: growth needs (water), (sunlight) and (air); there are (root), (stem), (leaves); both will (reproduce offspring); life (short); are (herbaceous plants).

11, the leaves of trees are (diverse), and the leaves of the same kind of tree have (**** the same) basic characteristics.

12, the leaves of plants are generally composed of (leaf blade) and (petiole). The leaf blade has (leaf veins).

13, leaves are (life), leaves from (leaf buds) start to grow, to the final senescence (death), completed life.

14, the changes of plants are mainly manifested in (germination), (growth), (flowering), (fruit) and so on.

15, can use (measure) to compare the size of leaves and can use (data) to record changes in plants.

16, Plants can be divided into (terrestrial) plants and (aquatic) plants according to the environment in which they live.

17、Plants need (water), (sunlight), (air) and (nutrition) to survive.

18、Plants have a (life cycle), and each plant has a certain (life span).

19, the **** the same characteristics of plants are: grow in a certain (environment); need (water), (sunlight), (air) and (nutrients); will (growth and development); will (reproduce offspring); all have from birth to death (life) process.

20. The typical growth stages in a sunflower's life are: (germination), (growth), (flowering), and (fruiting).

Unit 2 Animals Review Outline

1, animals have (diversity), animal survival depends on (environment), different environments grow different (animals).

2, we observe snails, we should pay attention to observe the snail's (appearance), (life), (movement), (reaction), (eating), (excretion), (reproduction) and so on.

3. Snails use (gastropods) to be able to crawl on various objects.

4, snails can produce corresponding responses to external stimuli. Such as (antennae stretch), (body retracts into) the shell.

5, earthworms like to live in (dark), (moist) environment.

6, earthworm body consists of many (link), the body has (mouth), (ring band), (anus).

7, snails and earthworms are the same: are adapted to the (wet) environment, the body (soft), both will (crawl), will eat (food), will (defecate), will (reproduce offspring) and so on.

8, the body of the ant is divided into (head), (thorax), (abdomen) three parts, the head has a pair of (antennae), thorax has six (feet).

9. Ants are adapted to live on (land).

10, the characteristics of ants: living on (land), the body has (head, thorax, abdomen) three sections, long six (feet), movement (crawl), (swarming) life, food (diverse), will (reproduce offspring) and so on.

11, fish have (structure) adapted to the aquatic environment, with the basic characteristics of (living organism).

12. Goldfish are characterized by living in (water), having (scales) on the surface of their bodies, swimming with (fins), breathing with (gills), eating (fish food) and (breadcrumbs), etc., and reproducing (offspring).

13, ants and goldfish are the same: both have (life), will (movement), need (food) to maintain growth, will (excrete) waste, will (reproduce offspring), etc..

14, the individual (form) of animals is different, and the (environment) in which they live is also different.

15, the **** the same characteristics of animals: living in a certain (environment), will (movement), need (food) to maintain growth, will (excrete) waste, will (response) to external stimuli, will (growth and development), will (reproduce offspring) and so on.

Unit 3 Materials Review Outline

1. Objects are made of one (material) or more (materials), and many different kinds of (materials) exist around us.

2, common materials around us are (wood), (fiber), (paper), (glass), (steel), (plastic), (rubber) and so on.

3, know what (materials) the objects around us are made of.

4. Describe wood in appropriate words: (yellowish-white, has a grainy surface, is not too heavy, can be sharpened, has sawdust after sawing, floats on water ......)

5, Metal is a very important (material) and has many important (uses).

6, the properties of metal: (hard), (have a metallic luster), (have ductility), (easy to transfer heat), (can conduct electricity), (poor water absorption) and so on.

7, flexibility refers to the nature of the object in the deformation of force (not easy to break). Physical properties can be used to (describe) a material, such as hardness, flexibility, water absorption and ability to sink and float in water.

8, the properties of plastic: with (flexibility), (insulation), (corrosion resistance), (not easy to heat transfer), (light), (reusability) and so on.

9, different materials in the water (sinking and floating) is different.

10, the characteristics of wood: (light), (relatively hard), (easy to process), (flexible), (can float in the water), (with gravity) and so on.

11, the main use of bricks is (building a house), the main use of ceramics is (do living things).

12, bricks are fired with (clay).

13, Ceramics are made from a (special clay).

14, Some of the materials we use are natural materials, like (wood), (clay), (cotton) and (cowhide). Some are man-made materials, like (metal), (plastic), (ceramics), (rubber) and so on. Some materials can be recycled and processed again for use, while others cannot.

15. We should use materials (reasonably) to minimize damage to (the) environment

Unit 4 Water and Air Review Outline

1. Objects can be divided into (solids), (liquids), and (gases), and they differ from each other in that solids have fixed (shapes), and liquids and gases do not have fixed (shapes).

2. Water is a liquid that has no (color), no (smell), no (taste), (transparent), and will (flow).

3. About seventy percent of the earth's surface is covered by (water).

4. Water is an important substance which is found in (plants), (animals), (human body) and (soil).

5. Water has three states: solid (ice), liquid (water), and gaseous (water vapor).

6, water is the source of life. (Plants), (animals) and (humans) are inseparable from water.

7, water has many uses. （Water is used for (industrial) production, (agricultural) production and (human) life.

8. Compared with cooking oil, water has differences in (color), (smell), (transparency), (viscosity), (shape of droplets), (weight) and so on, but they both (flow) and have no fixed (shape).

9. All liquids flow, and the speed of flow is affected by (viscosity).

10, the liquid has a certain volume, the volume of the liquid can be (measure).

11, measuring cylinder is a glass cylinder with a scale, specially used (measure how much liquid), that is, measure the volume of liquid.

12, The unit of liquid volume is (milliliter).

13, the use of measuring cylinder to measure the volume of liquid, need to pay attention to the following two points: (1) the cylinder must be put (smooth). (2) When reading, the line of sight should be kept (horizontal) with the lowest part of the (concave surface) of the liquid in the cylinder, and then read out the volume of the liquid.

14. Air is a kind of (substance) that exists around us and can be (perceived) by us.

15, Air has many (same) and (different) compared with water.

16, air is a gas that has no (color), no (smell), no (taste), (transparent) and will (flow).

17, Air occupies (space).

18, air can be (compressed) and compressed air is (elastic).

19, Air has (weight).

20, Wind is formed by the flow of (air).

Primary Science Grade 3 Review Packet

Unit 1:Growth and Change in Plants

1. Almost all of the green, flowering plants we are familiar with start their new lives from seeds, but some plants can reproduce their offspring from roots, stems, and leaves.

2. When an impatiens seed germinates, the first pair of "leaves" to emerge are cotyledons. The first pair of "leaves" is different from the leaves that grow later.

3. The conditions for seed germination are: water, temperature and air. Plants need: sunlight, soil, suitable water, temperature and air to grow and develop

4. The roots of a plant absorb water and minerals and also hold the plant in the soil.

5. The green leaves of plants make the nutrients that plants need to grow. Photosynthesis is the process by which the green leaves of a plant rely on the energy provided by sunlight to utilize carbon dioxide and water, create nutrients, and release oxygen.

6. The stem of a plant serves to support the plant body and to transport water and nutrients. Plant stems have different external morphologies at different stages of growth, and stems grow at different rates at different times. The stem grows faster in the early stages of growth, fastest in the middle stages, slower in the later stages, and almost stagnant in the end.

7. Seed germination first long roots, then long stems, leaves, roots are always downward growth; plant flowers to go through the process of blossoming and shedding. The fruit is developed from the flower. Flowers include calyx, petals, stamens, pistils, etc.

8. Anthurium plants are composed of roots, stems, leaves, flowers, fruits, and seeds. The leaf margins are serrulate and the petioles are fleshy and juicy. The fruit is fusiform with white fuzz, and the skin can split at maturity, changing color from green to yellow-brown. The seeds are spherical and brownish.

Unit 2: Animal Life Cycles

1. The life of the silkworm begins with the egg. The silkworm egg is alive. Silkworm eggs are flat and round and as big as a sesame seed. The color of the egg changes: yellowish - rose-red - purple-black. The egg that is about to hatch into a baby silkworm is purple-black in color. Silkworms go through: birth - growth and development - reproduction - death four stages, which is the life cycle of the animal.

2. The life of a silkworm goes through four stages: egg - silkworm - pupa - moth. The silkworm is the larva in the life cycle of the silkworm and the moth is the adult silkworm. So the life of a silkworm is: egg - larva - pupa - adult. Then a new cycle is created from the egg.

3. Characteristics of the appearance of the silkworm baby: the form is cylindrical, the body is divided into head, thorax, abdomen three parts, the head is small, on each side of the distribution of six black-brown single eye, the bottom with chewing mouthparts, the lower lip in the middle of a small hole, for spitting holes. Thorax three pairs of feet, can assist the mouthparts to hold mulberry leaves. Abdomen five pairs of feet, to help body movement. There is a protuberance on the dorsal side of the hind end, called the caudal horn. Both sides of the body has a small black spot is the silkworm's respiratory organs (valve), before molting, the silkworm does not eat food, head and chest up, no longer moving, as if asleep, such a phenomenon is called "sleep"

4. The silkworm chrysalis is short and stout, the body is fusiform, divided into the head, thorax, abdomen, three parts, the head is very small, with a black eye, eyes, eyes below the primitive body with a pair of antennae. The thorax has long thoracic feet. The ventral and caudal feet disappear. The thorax and abdomen have segments. The back of the thorax has a shield from which two pairs of wings arise. The bulging abdomen is long with nine segments, with well-developed pneumatophores on both sides from the 2nd-7th abdominal segments. The body color is brownish.

5. Silkworm moths are covered with white scaly hairs, the body is divided into three parts: head, thorax and abdomen, the head is covered with eyes and one pair of antennae, and the mouthparts are reduced. The thorax is covered with two pairs of wings and three pairs of legs. Due to the two pairs of wings are small, has lost the ability to fly, the abdomen has no gastropods, the terminal body segments evolved into external genitalia.

6. Difference between female and male moths: female moths are large, with gray antennae, fat abdomen, short wings and slow crawling; male moths are small, with black antennae, narrow abdomen, large wings, fast crawling, fast wing vibration and fast flying, with the posterior end of the abdomen slightly protruding and the wings slightly raised.

7. Silkworms to the end of the fifth age reflects the characteristics of maturity: first of all, the feces discharged from hard to soft, from dark green to leaf green; appetite loss, the amount of food mulberry decline; the front of the digestive tube is empty, the chest is transparent; followed by a complete cessation of food, shortening of the body, the abdomen tends to be transparent, the head of the silkworm body thorax, spit, swing up and down to look for the camping cocoon place.

8. Insects are characterized by: the body is divided into head, thorax, abdomen, a pair of antennae on the head and three pairs of legs on the thorax.

9. Some animals look very different in their juvenile and adult stages, changing from one form to another, a change called metamorphosis. Common insects, bees, ants, flies, mosquitoes, fleas, butterflies, moths, beetles, locusts, crickets, praying mantis, dragonflies, cicadas, cockroaches, aphids, lice and so on belong to the metamorphosis. There are also frogs and toads that belong to metamorphosis.

10. All animals in nature have a life cycle and go through four stages: birth, growth, development, reproduction and death. Different animals have different forms, changes, and ways of reproducing during the growth process, and different lengths of life.

11. People also go through four stages of birth, growth, development, reproduction, and death. Our bodies have changed a lot since we were born and will change in the future. The characteristics of the human body vary at different ages of life.

12. The length of human and animal life is related to the environment in which they live. People and animals reproduce so that their species does not die out as individuals age and die, and continue to do so.

Unit 3 Temperature and Thermometers

1. The degree of hotness or coldness of an object is called temperature, and its unit is usually expressed in degrees Celsius (°C). To know more accurately how hot or cold an object is at a point, it can be measured with the help of a thermometer. Commonly used liquid thermometer is the use of glass tubes in the liquid column with the temperature change and rise and fall to measure the temperature.

2. According to the different measurement range and use needs, people designed and produced different thermometers. Measuring the temperature of an object should be based on different measurement objects, choose the appropriate thermometer.

3. The scale of the thermometer is generally between 35 ℃ - 42 ℃, each degree Celsius is subdivided into 10 cells, so each moment on the thermometer represents 0.1 ℃. The normal body temperature of a person is between 36℃ and 37℃ on average, and more than this temperature is fever.

4. Measurement of water temperature: (1) Hold the upper end of the thermometer in your hand. (2) Dip the lower end of the thermometer into the water without touching the bottom and walls of the container. (3) Hold the thermometer at eye level with the liquid level of the thermometer. (4) Read when the liquid is no longer rising or falling. (5) The thermometer can not leave the measured water when reading.

5. For an object, the object loses heat, the temperature falls; the object gains heat, the temperature rises. By measuring the change in temperature of an object you can tell whether the object is losing or gaining heat.

6. Water has three states of existence in nature: liquid, solid, and gaseous, and the change in the state of water is related to heat. When the ambient temperature is below 0 degrees Celsius, the temperature of water falls to 0 degrees Celsius, it begins to freeze, changing from a liquid state to a solid state. Water in the process of freezing, to release heat to the surrounding. When the ambient temperature is higher than 0 degrees Celsius, the temperature of ice rises to 0 degrees Celsius when it begins to melt; ice in the melting process, ice and water mixed together, the temperature will remain at 0 degrees Celsius for a long time, until completely melted into water. Ice in the melting process, to absorb heat from the surrounding area, heat is an important factor in making changes in the state of water. Water vapor condenses into water when it gets cold.

7. Why is the outside wall of the glass ice beads: because the glass around the air in the water vapor, cold glass wall, condensed into visible droplets.

8. The three states of water (liquid, solid and gaseous) can be transformed into each other, which makes the water in nature to produce a circular movement. The process of water turning into water vapor is called evaporation, and we cannot see it because the particles of water vapor are too small. (Heating speeds up the evaporation of water). The process by which water vapor turns into water is called condensation. Ice temperature rises into water in the process called melting. Water in nature has various forms a cloud, fog, rain, dew, frost, snow, ice, water vapor ...... That is, water in nature at the same time to exist.

9. Water in nature constantly undergoes a cycle of changes in the three states, prompted by changes in the three states of water is the cause of temperature changes.

Unit 4 Magnets

1 Magnets attract objects made of iron, a property called magnetism. Magnets come in a variety of shapes. Magnets have some special properties and are widely used in many ways.

2 Magnets can attract iron even across some objects.

3 The part of the magnet that has the strongest magnetic force is called the pole, and a magnet has two poles.

4 A magnet can point in a north-south direction. The magnetic pole of the guide is called the South Pole, which is denoted by "S"; the magnetic pole of the North Pole is called the North Pole, which is denoted by "N".

5 The same poles of a magnet repel each other, and opposite poles attract each other. The action of the two magnetic poles is mutual.

6 When two magnets are attracted together, the magnetic force increases; when two mutually repulsive poles are combined, the magnetic force decreases.

7 A compass is an instrument made to indicate direction by utilizing the property of magnets to point north and south. A typical compass consists of a magnetic needle and an azimuth disk.

8 How to set the direction with a compass: (1) Flatten the compass case and let the magnetic needle rotate freely. (2) When the magnetic needle stops swinging, turn the compass box, so that the azimuth disk marked on the south (S), north (N) direction and the magnetic needle pointing to the south and north direction. (3) Determine each direction against the azimuth disk.

9 The meanings of the letters on the compass azimuth disk are: N-North; S-South; W-West; E-East; NE-North-East; SE-South-East; SW-South-West; NW-North-West.

10 The use of a magnet is linked to its nature. A steel needle can be turned into a magnetic needle by rubbing it against a magnet.