WorksheetsÔn Tập Công Nghệ Lớp 4
Total questions: 27
Worksheet time: 51mins
What are some types of flowers and ornamental plants that can purify the air?
Aloe Vera
Snake Plant
Evergreen
All of the above
What are the benefits of flowers and ornamental plants for human life?
Decorative, purifying air, home, etc.
Leaves used for treating burns, stopping bleeding, helping to heal scars, etc.
Dried flowers used for making tea, helping to cool the body, beautifying skin, etc.
All of the above
How much water do ornamental plants need?
Not too much
A lot
Very little
Not needed
What are the main tasks to care for flowers and ornamental plants?
Watering flowers and ornamental plants
Fertilizing flowers and ornamental plants
Ensuring sufficient light for flowers and ornamental plants; watering flowers and ornamental plants; fertilizing flowers and ornamental plants; pruning old leaves, cleaning and pest control for flowers and ornamental plants.
Ensuring sufficient light for flowers and ornamental plants
What flower lives underwater, blooms in summer, has petals that are often pink, white, or yellow, and has yellow stamens?
Cherry Blossom
Hydrangea
Apricot Blossom
Lotus
Arrange the steps to sow flower and ornamental plant seeds in the correct order.
Sow seeds; lightly water; prepare materials, tools, and equipment for sowing seeds; put the substrate in the pot.
Lightly water; put the substrate in the pot; prepare materials, tools, and equipment for sowing seeds; sow seeds.
Prepare materials, tools, and equipment for sowing seeds; put the substrate in the pot; sow seeds; lightly water.
Put the substrate in the pot; prepare materials, tools, and equipment for sowing seeds; lightly water; sow seeds.
What tool is used for planting flowers and ornamental plants to dig and turn the soil?
What tool for planting flowers and ornamental plants is used to scoop soil, till soil, and make soil loose?
Shovel
Watering can
Saw
Pruning shears
What is step 2 of the process of sowing flower seeds and ornamental plants in pots?
Watering
Adding substrate to the pot
Sowing seeds
Preparing materials, tools, and equipment.
How many steps are there in planting flowers and ornamental plants in pots?
3 steps
4 steps
5 steps
6 steps
What are the ways to fertilize flowers and ornamental plants?
Fertilize evenly around the base
Mix with water and water at the base
Mix with water and spray on the leaves
All of the above
Match column A with column B
Match column A with column B
Match column A with column B
Hoa cây cảnh cần được tưới đủ nước, nếu thiếu hoặc thừa nước
a. lá cây bị vàng, cháy mép lá.
b. sẽ ảnh hưởng đến sự sống và phát triển của cây.
c. miền Nam
Đúng ghi Đ, sai ghi S sau mỗi thông tin sau: Hoa mai được trồng phổ biến ở miền Nam; hoa thường có màu vàng, màu trắng, nở vào mùa xuân.
Đúng ghi Đ, sai ghi S sau mỗi thông tin sau: Khi ngâm hạt giống trong nước ấm ta pha theo tỉ lệ 3 phần nước sôi, 2 phần nước lạnh.
Đúng ghi Đ, sai ghi S sau mỗi thông tin sau: Nhiều loại hoa cây cảnh có khả năng hấp thụ một số loại khí có mùi hôi và khí độc.
Điền vào chỗ chấm cho hoàn chỉnh nội dung sau. Khi cây ……………….. cây sẽ lấy khí carbon dioxide (CO2) từ ……………….và tạo ra khí oxygen (O2 ) cung cấp cho hoạt động …………………. của con người và động vật.
quang hợp
không khí
hô hấp
When the tree ……………….. the tree will take carbon dioxide (CO2) from ………………. and produce oxygen (O2) for the …………………. activities of humans and animals.
The ………… activities of humans have taken …....... from the air and emitted ………..
Fill in the blanks to complete the following content. Giving flowers on holidays and Tet to express ………………. or ………………….. towards the recipient.
Fill in the blanks to complete the following content. Besides being used for ………………, roses are also a symbol of ……………. and are ………………… to make many types of perfume and tea.
Flowers and ornamental plants need enough …………….. to …………………. . Lack of …………….. will make the plants weak, stretch out, and easy to fall; stems and leaves will be pale or yellow. Excessive ………………… can cause the plants to yellow or burn their leaves.
Why is it necessary to ensure enough light for plants when planting flowers and ornamental plants?
State the method of treating seeds before sowing.
What is the effect of fertilizing correctly? What should be noted when fertilizing?
