Preguntas frecuentes
15-Write three differences between renewable and non-renewable energy sources.
15-
16-Say objects that show the following forms of energy:
-Sound
-Heat
-Electrical
16-
17-What is the name of energy in the form of light, in the form of movement and in the form of heat?
17-
4º PRIMARIA
1-Read the clues and write the part of the plant in your notebook.
a) We make food.
b) We fix the plant in the ground.
c) Water and nutrients pass trough me.
1-
2-2-Read and find:
a) Two functions of the roots.
b) Two functions of the stem.
c) One function of the leaves.
d) Two different types of root.
e) Two different types of stem.
2-
3-Read and copy the correct sentence in your book:
a) To make food plants need oxygen, minerals, water and sunlight.
b) To make food plants need carbon dioxide, minerals air and sunlight.
c) To make food plants need carbon dioxide, minerals, water and sunlight.
3-
4-Write two very important things plants make for us.
4-
5-Choose the correct answer.
a)All plants have...
1-roots, stems and flowers.
2-roots, stems and fruits.
3-roots, stems and leaves.
b) A plant makes food in the...
1-roots.
2-leaves.
3-flowers.
c)Paper comes from...
1-the trunk of trees.
2-the leaves of trees.
3-the roots of trees.
d) The stem of a grass is...
1-hard.
2-green and flexible.
3-woody.
5-
6-Copy the correct sentences in your notebook. Correct the false ones.
a) Plants make their own food.
b) Evergreen plants lose their leaves in autumn.
c) Grasses have woody stems.
d) Fruit is formed in the calyx of the plant.
e) The stamens have ovules.
6-
7- Which is the odd one out? Write why.
a) Tree
Trunk
Branches
Flexible stem
b) Bush
Wheat
Woody stem
Branches
c) Grass
Small plant
Branches
Soft stem
7-