Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
33 Cards in this Set
- Front
- Back
|
What is the formula for finding the volume of a regular shape? |
V = lwh or Volume = length times width times height. |
|
|
Find the volume of a box that is 12 cm long, 6 cm wide, and 4 cm high. |
288 cm3 |
|
|
Name the three most common states of matter. Give an example of each. |
Solid – table, Liquid – water, Gas - oxygen |
|
|
Describe the movement of molecules in each state of matter. |
Solid – vibrate or shake in place Liquid – can move around and slide passed each other
Gas – can move about very freely |
|
|
What is an atom? |
The smallest, or most basic, unit of matter |
|
|
What is an element? |
Contains only one type of atom |
|
|
What is a compound? Give at least one example. |
consists of two or more types of atoms bonded together. Example – salt |
|
|
What is a mixture? Give at least one example. |
a combination of different things that stay the same individual thing when mixed and can be separated physically. Example: fruit salad
|
|
|
Name 3 ways to separate a mixture. |
Magnets, evaporation, filtering |
|
|
Illustrate the particle arrangement for each state of matter. |
gas liquid solid
|
|
|
What are physical changes? Give two examples. |
A change in any physical property of a substance, not the substance itself. Examples: shaping a piece of clay, or painting a house
|
|
|
What are chemical changes? Give two examples.
|
A change of one substance into another. Examples: burning wood or iron rusting |
|
|
MATTER AND ENERGY |
MATTER AND ENERGY |
|
|
List and describe the four basic characteristics of living things.
|
1. organization – have cells that allow them to get energy and to move.
2. growth – consume food to get larger 3. reproduction – form other organisms like themselves, DNA is copied and passed on to offspring 4. response to their environment – react to light, temperature and touch |
|
|
Define symbiosis. Describe the three different types of symbiosis.
|
A close relationship between 2 different species that live close together
1. Mutualism – both species benefit 2. commensalism – one species benefits, the other is not affected 3. parasitism – one species benefits, the other species is harmed. |
|
|
How are organisms classified?
|
kingdoms
|
|
|
Most scientists consider viruses to be non-living. Explain why. What do they have in common with bacteria?
|
They do not respond to their environment, don’t grow, and don’t take in energy. They have DNA like bacteria do.
|
|
|
What are bacteria? List the defining characteristics.
|
Simplest form of life. Single celled, no nuclei
|
|
|
Define cell.
|
Smallest unit of life that is able to perform the basic functions of life.
|
|
|
Compare and contrast plant cells and animal cells.
|
Compare – both have nuclei, cell membraneContrast – plant cell has chloroplasts, animal cell does not. Plant cell has cell wall, animal cell does not. Plant cell is rectangular shape, animal cell is circular or irregular shaped
|
|
|
Explain photosynthesis.
|
Process in which producers use energy from the sun to make sugar.
|
|
|
Explain cellular respiration.
|
Process in which cells use oxygen to release stored energy.
|
|
|
What 2 factors make up an ecosystem?
|
Abiotic factors - non living
Biotic factors– living thing |
|
|
What is a habitat?
|
The physical location where plants and animals live.
|
|
|
Explain the difference between deciduous and coniferous trees.
|
Deciduous – broad leaves, drop leaves in winter time
Coniferous – needle like leaves, keep leaves in winter time |
|
|
Give 2 examples of animal adaptations.
|
Thick fur for cold climates
Skin/fur color for camouflage |
|
|
Explain how living things cooperate and compete.
|
Cooperate – working together to benefit all, ants bring food to the nest
Competition - a struggle for limited resources, hyenas and vultures fighting over remains of dead animal for food. |
|
|
What is a producer?
|
An organism that makes its own energy using sunlight.
|
|
|
What is a consumer? Explain the 3 levels.
|
An organism that gets energy from eating other living things
Primary – first link between producers and the rest of the consumersSecondary – eat primary consumers Tertiary - eat secondary consumers |
|
|
Explain the role of decomposes
|
An organism that breaks down dead organic matter
|
|
|
What is an energy pyramid? Draw and example
|
An energy pyramid shows the available energy in an ecosystem. The amount of energy decreases as you move up the pyramid
|
|
|
An energy pyramid shows the available energy in an ecosystem. The amount of energy decreases as you move up the pyramid
|
Compare – both show feeding relationships, both have producers and consumers
Contrast – food chain only show a single chain of consumers, and food web is many overlapping food chains. |
|
|
What would happen if an organism were removed from its ecosystem?
|
Other organisms that rely on it for food could die out
|
