Things Around Us
What are living things?
Birds, insects, animals, trees, human beings, are a few examples of living things as they have the same characteristic features, like eating, breathing, reproduction, growth, and development, etc.
Name four different animal groups with backbones...
fish, amphibians, reptiles, mammals and birds.
What is a food chain?
A food chain refers to the order of events in an ecosystem, where one living organism eats another organism.
What is the function of the stem of a plant?
The stem transports water and nutrients up from the roots all the way to the leaves, and the stem transports sugars from the leaves to the rest of the plant.
How does our heart work?
It pumps blood around in our body.
What are things that once lived?
Examples for once living items are: paper, pencil, piece of bark, dead grass, a dead insect, flour, wood, pine cone, bird feather, sea shell, etc.
Name four animal groups without backbones...
Insects, spiders, worms, snails, and most ocean animals
Put in line: snail - bird - dandelions - fox - frog
Dandelions - snail - frog - bird - fox
What is the function of the roots of a plant?
Roots absorb water and minerals and transport them to stems. They also anchor and support a plant, and store food.
What do our lungs do?
Oxygen from incoming air enters the blood, and carbon dioxide, leaves the blood.
What are things that have never lived?
Examples for nonliving items are: rock, plastic animal, sand, spoon, pen, glass cup, penny, and bouncy ball.
Name four features of birds...
beak, wings, warm-blooded, hollow bones, feathers, nests, and eggs.
Put in line: birds - worms - eagles - decayed plants
Decayed plants - worms - birds - eagles
Why do we need trees?
During the process of photosynthesis, trees take in carbon dioxide and produce the oxygen we breathe.
What do our intestines do?
The digestion of food.
Can living things move?
Most of the living things can move. Animals can move on their own. Example- Leopards, cats, dogs can run. In the case of plants, they move towards the sun, as sunlight is essential for growth.
Name three features of reptiles...
scales, lay eggs, cold-blooded, backbone
Put in line: cow - maggot - grass - man
Grass - cow - man - maggot
How does temperature affect plant growth?
Each plant species has a suitable temperature range. Within this range, higher temperatures generally promote shoot growth, including leaf expansion and stem elongation and thickening. However, temperatures above the optimal range suppress growth.
What is the function of our kidneys?
They filter about half a cup of blood every minute, removing wastes and extra water to make urine.
Do living things need nutrition?
Every living thing needs some type of food (nutrition) to give them energy to stay alive. Plants make their own food through photosynthesis.
Name four features of mammals...
hair or fur, warm-blooded, backbones, produce milk, give birth
Put in line: shrimp - plankton - cat - herring
Plankton - shrimp - herring - cat
How does light affect plant growth?
All plants require light for photosynthesis, the process within a plant that converts light, oxygen and water into carbohydrates. Plants require this energy in order to grow, bloom and produce seed.
What is the biggest organ in your body?
Our skin is the largest organ of our body.