Shared Flashcard Set

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Trimester 1 Test Study Guide
Life Science ch. 1-3
50
Science
4th Grade
12/05/2010

Additional Science Flashcards

 


 

Cards

Term

 

 

Cell 

Definition

 

 

The basic unit of structure and function in a living thing.

Term

 

 

Cytoplasm

Definition

 

 

A jelly like substance that fills most of the space in a cell.

Term

 

 

Cell Membrane

Definition

 

 

Surrounds an animals cell and controls what materials go into and out of the cell.

Term

 

 

Nucleus

Definition

 

 

Controls all cell activities.

Term

 

 

Cell Wall

Definition

 

 

Surrounds the cell membrane and helps keep the cell strong.

Term

 

 

Chloroplasts

Definition

 

 

Contain Chlorophyll- the green color plants need to make their food.

Term

 

 

Vertebrates

Definition

 

 

Animals with a backbone.

Term

 

 

What kinds of animals have a backbone (vertebrates)?

Definition

 

 

Birds, snakes, bats, and humans are vertebrates

Term

 

 

Invertebrates

Definition

 

 

Animals that do not have a backbone, but usually have an outer covering, such as a shell that supports its body.

Term

 

 

What are some examples of invertebrates?

Definition

 

 

Ants, spiders, centipedes and crabs

Term

 

 

Embryo

Definition

 

 

A seed made up of a young plant.

Term

 

 

Flower

Definition

 

 

Are reproductive structures where the male part forms pollen and female part forms eggs.

Term

 

 

Fruit

Definition

 

 

This is the part of the flowering plant that contains and protects the seeds.

Term

 

 

Environment

Definition

 

 

Is everything that surrounds and affects an animal.

Term

 

 

Climate

Definition

 

 

Is the average temperature and rainfall of an area over many years.

Term

 

 

Oxygen

Definition

 

 

Animals need this, one of many gases in the air.

Term

 

 

Shelter

Definition

 

 

Is a place where an animal is protected from other animals or from the weather.

Term

 

 

What are the five basic needs that animals need to survive?

Definition

 

 

Animals need Climate, Oxygen, Food, Water and Shelter.

Term

 

 

Metamorphosis

Definition

 

 

The process of change from an egg to an adult butterfly.

Term

 

 

Vacuole

Definition

 

 

 

A storage space for food.

Term

 

 

Mitochondria

Definition

 

 

carries out the activities that release energy for the cell.

Term

 

 

Adaptation

Definition

 

 

Is a body part or behavior that helps an animal meet its needs in its environment.

Term

 

 

 

Camouflage

Definition

 

 

is an animals color or pattern that helps it blend in with its surroundings. This is an adaptation that helps an animal hide.

Term

 

 

Mimicry

Definition

 

 

 

Is an adaptation in which an animal looks very much like another animal. (This tricks animals to not eat them).

Term

 

 

 

Instinct

Definition

 

 

Is a behavior that an animal begins life with.

 

Instincts are adaptations that help animals meet their needs.

Term

 

 

Migration

Definition

 

 

Is the movement of a group of one type of animal from one region to another and back again. This is a behavioral adaptation.

Term

 

 

What instinct do monarch butterflies have?

Definition

 

 

The behavior of flying South for the winter.

Term

 

 

What are some animals that migrate?

Definition

 

Monarch butterflies, Atlantic green turtles, gray whales, Salmon, and many birds.

Term

 

 

Hibernation

Definition

 

 

Is a period when an animal goes into a long deep "sleep."

Term


How does and animals body change during hibernation?
Definition

 

 

An animals body temperature drops, and its heartbeat rate and breathing rate fall. It requires less energy.

Term

 

 

How does an animal prepare to hibernate?

Definition

 

 

An animal prepares to hibernate by eating extra food and finding shelter.

Term

 

 

How is an instinct different from a learned behavior?

Definition

A learned behavior is one that an animal developed by watching or hearing other animals. An instinct is a behavior that an animal is born with. 

 

Ex: Hunting is a learned behavior among tigers. Hibernating is an instinct.

Term

 

 

 

Carbon Dioxide

Definition

 

 

Is a gas breathed out by animals.

Term

 

 

Nutrients

Definition

 

 

Are substances, such as minerals, that all living things need to grow.

Term

 

 

Photosynthesis

Definition

 

 

This is the process where a plant makes its own food and it takes place in a plants leaves.

Term

 

 

What does a plant need to carry out photosynthesis?

Definition

 

 

Light, Carbon Dioxide, Chlorophyll, and water

Term

 

 

What are four things that plants need to live?

Definition

 

 

Air, nutrients, water, and light

Term

 

 

What adaptation do vines have?

Definition

 

 

Long stems so that they can cling to almost anything to reach sunlight.

Term

 

 

What adaptation do Cacti have to collect rain water?

Definition

 

 

Their roots grow near the surface of the ground to collect water, and the thick stems hold water for the plant to use during dry periods.

Term

 

 

How do waterlilies capture sunlight?

Definition

 

 

They have flat pads that float on the surface of water and that is their adaptation.

Term

 

 

Dormancy

Definition

 

 

Lower activity, until spring to save energy.

Term

 

 

Transpiration

Definition

 

 

Is the giving off of water by plant parts.

Term

 

 

Germinates

Definition

 

 

When a seed has all it's needs met.

Term

What does the Pistol do?

 

[image]

Definition

 

 

The top of the pistol collects pollen.

Term

What does the Stamen do?

 

[image]

 


Definition

 

 

Makes pollen, a kind of powder.

Term

 

Seeds form after a flower is pollinated. Pollination happens when.....?

Definition

pollen is carried from stamen to a pistil by wind or animals.

 

[image]

Term

Where do seeds form in a flower?

 

[image]

 


Definition

 

 

 

in the bottom of the pistil.

Term

 

 

What do most seeds need to begin to grow?

Definition

 

 

air, water, and warmth

Term

 

 

Spores

Definition

 

 

Some plants grow from spores, which are tiny and most are made of only one cell.

Term

 

 

Tubers

Definition

 

 

Potatoes are tubers, which are swollen underground stems

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