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Jumat, 20 November 2020

Science Summary for Grade 3

Chapter 1 – Wonderfully Made

1.       God wants you to enjoy the world. He creates our nervous system to helps you to think, see, hear, feels, smells, and taste.

2.       Your brain controls your whole body.

3.       Your nerves carry messages from your brain to your body and back again.

4.      The left side of your brain controls the right side of the body.

5.       The parts of your body that God designed especially to help you react to the things around you are called your sense organs.

6.       The most important senses are sight, hearing, smell, taste, and touch.

7.       The  Iris is the part of your eye that is colored brown, blue, green, or gray.

8.       The middle of the iris is a black circle. We call this black circle the pupil of your eye.

9.       Thousands of eyes fitted closely together to make an insect’s eye called compound eyes.

10.   Vitamin A is good for your eyes.

11.   The auditory nerve carries the sound message to the brain.

12.   Taste and smell are two senses that work closely together.

13.   Molecules are the tiny particles of a substance

14.   We call the tiny holes in the skin is pores.


Chapter 2 – Exploring the Plant World

15.   The green material in plants is chlorophyll. With the help of sunlight and chlorophyll, the leaf will make a simple sugar called glucose.

17.   Mushrooms grow from spores.

18.   The plant’s job:

Seed to grow new plants. Flower makes seeds. Steems take minerals and water from the soil. Stem carry foods. Leave make food

19.   The plant makes its own food. This process is called photosynthesis.

20.   The three main parts of seeds are seed coat, young plant, and food for the young plant. The seed coat is the hard outer covering of a seed. What happens to the seed coat when the seed begins to sprout? The seed coat pops open, falls off, and dies.

21.   To grow into a plant, the seeds need water, soil, and the right temperature.

Sunflower


Chapter 3 – Exploring the World of Vertebrate

22.   Animals with backbones are called vertebrates, and animals without backbones are called invertebrates.

23.   Briefly list the five ways that all mammals are alike:

They make milk for their babies and take care of their young.

They have hair/fur and has 4 limbs

They are warm-blooded.

Most give birth to live young.

Mammals breathe with lungs.

24.   Fish are alike in three ways: All fish have gills, all fish have fins and all fish are coldblooded. Fish breathe air with gills.

25.  Salmon are very interesting fish. They hatch in freshwater streams, swim downstream to the sea. Then one day, after they have grown, they swim back to the place where they hatched. There are many streams, how did the salmon know to find the right one? That is one of the wonders of God's creation.

26.   The amphibian means living a double life.

27.   How are reptiles alike: all reptiles breathe with lungs, covered with dry scales and coldblooded.

28.   Bird are the only animals that have feathers


Chapter 4 – Exploring the World of invertebrate

29.   An earthworm has special projections that help protect it from hungry birds. the projections called setae.

30.   The biggest group of invertebrates called insects. Examples of two helpful insects are the Praying mantis & Honey bee.

31.   Many insects go through four stages of growth during their lives: egg, larva, pupa, and adult. This is called metamorphosis.

32.   Spiders are not insects. Spiders have only two parts: a head and thorax.

33.   A caterpillar eating a lot of after it hatches.  A new butterfly’s wings must be dry before it can fly. An insect has 6 jointed legs.

34.   Energy moving through space from its source to an object, then from that object to our eyes called light. Energy ia ability to do work: Sound vibration traveling through the air are called sound waves.

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