Sound

 What causes sounds?

Take a walk in the city. Cities are noisy. Car horns honk. Buses and garbage trucks roar by. People talk on the street. It is much quieter in the country. Birds chirp. Cows moo. Water trickles in a creek.

Sounds are everywhere. Some sounds you hear may hurt your ears. You may like other sounds. Each sound you hear is different. Sounds are also alike in some ways.

Sound happens when matter moves back and forth very quickly. This movement is called a vibration. There must be movement to make sound.

The instruments pictured make sounds. They can make high sounds. They can make low sounds. Pitch is how high or low a sound is. Objects that vibrate slowly make a low-pitched sound. Objects that vibrate quickly make sounds that have a higher pitch.

Vocabulary:

horns honk          :            tiếng còi xe

garbage truck      :            xe chở rác

trickles                :            nhỏ giọt

creek                   :            lạch nhỏ

matter                 :            vấn đề

forth                   :             ra ngoài

movement          :             sự chuyển động

pitch                   :             âm độ

vibrate                :             rung

20/8/2021

Levic

Weather

 

What makes up weather?

Weather is what the air is like outside. The air temperature is part of the weather. So is the water in the air. the wind speed and kinds of clouds are part of the weather too.

Most clouds are made of water droplets. Clouds hang in the air. When a cloud can't hold any more water, it rains. Puffy, white clouds  usually mean good weather. Dark clouds often bring rain.

You might say that the weather is hot today. But your friend might disagree. To your friend, the weather might tot feel hot. So scientists use tools to measure the weather. That way, we know exactly what the weather is like!

Vocabulary:

 wind speed         :           tốc độ gió

 water droplets    :           giọt nước

 hang                   :           treo

 puffy                  :           phồng to

 disagree             :           không đồng ý

 measure             :           đo lường

 exactly               :           một cách chính xác

 

Plants and how they grow

 What the main parts of a plant?

Living things have needs. Plants and animals need food, air, water, and space to live and grow.

Animals need to find food to eat. Plants are different. They can make their own food. Plants use energy from the sun to make food.

Plants come in all sizes and shapes. They can grow almost anywhere. Each plant needs special things to grow. Most plants have four parts. Roots, a stem, flowers, and leaves are the four main parts.

Vocabulary:

energy        :             năng lượng

shapes        :             hình dạng

special       :             đặc biệt

roots          :             rễ

stem          :             thân cây

main          :            Chủ yếu

18/8/2021

Levic

Plants and animals living together

 How to living things interact?

Living things interact in many ways. An interaction between them can be helpful. I may help a living thing survive. Animals living in groups help each other. One kind of living thing may help another. Two different kinds of living things may help each other.

Think about these examples. Many animals live in herds together. The animals of herd protect each other. Flowers need light to grow. Sometimes flowers grow on the trees. Then they can get more light. Insects drink nectar from flowers. When they do this, they spread the flowers' pollen to other flowers.

Vocabulary:

interact (n)             :           tương tác             

interaction (n)        :          sự tương tác

survive (v)             :          sống sót

herd (n)                  :          bầy đàn

nectar (n)               :          mật hoa

spread (v)              :          Lan tràn

pollen (n)              :           phấn hoa

                                                                                                                                            

Cinderella P2

 https://youtu.be/txSgJQ0dgqo 

Where plants and animals live

 What are ecosystem?

Living things need the right environment. Plants and animals are living things. It need sunlight, water, soil. Everything around the living things are environment. The living things need the kind of weather. Sunshine makes the environment warm. It helps plants make their own food. 

Climate is also important for an environment. Climate is the weather a place has over many year. Different environment have different climates.

Climate affects an environments water and soil. Water and soil affect the plants in an environments. Plants need certain kinds of water and soil to live.

VOCABULARY:

right environment (n)   :                môi trường phù hợp

sunlight (n)                   :                ánh sáng mặt trời

climate (n)                    :                khí hậu

affect  (v)                      :                ảnh hưởng đến

16/8/2021

Levic

Cinderella. Levic version