Science

Question 0

Supports plant cells

Answer 0

Cell walls

Question 1

Carries wastes, food and water

Answer 1

Vacuole

Question 2

Makes energy

Answer 2

Mitochondria

Question 3

Makes food and releases oxygen in a plant cell

Answer 3

Chloroplast

Question 4

Directs cell activities

Answer 4

Nucleus

Question 5

Allows the passage of materials

Answer 5

Cell membrane

Question 6

How are plant and animal cells different?

Answer 6

Plant cells have a cell wall and chloroplasts. Plant cells also have larger vacuoles compared to animal cells

Question 7

What is the function of DNA?

Answer 7

DNA controls inherited traits and genetic material.

Question 8

Where is DNA found (Use the following terms in your answer: nucleus, chromosomes, and genes)?

Answer 8

DNA is found in your genes, which are on a chromosome, found in the nucleus.

Question 9

What is the correct structure of living things?

Answer 9

Cells>tissues>organs>organ systems

Question 10

Functions of skeletal system.5

Answer 10

Produces red blood cells, stores minerals, protects internal organs, provides shape and support, and enables movement.

Question 11

Functions of the muscular system:2

Answer 11

Provides movement, controls many internal organs.

Question 12

Functions for the integumentary system. 5

Answer 12

Prevents loss of water (dehydration), protects body from injury and infection, regulates body temperature, eliminates wastes, gather information about the environment.

Question 13

Functions of the digestive system:3

Answer 13

Breaks down food, molecules absorb into blood and carried throughout the body, solid wastes are eliminated.

Question 14

Functions of the excretory system:2

Answer 14

Removes wastes, collects and eliminates cellular waste from body (liquid and gas)

Question 15

Functions of the circulatory system-1

Answer 15

Carries need substances to cells

Question 16

Functions of the reproduction system-1

Answer 16

Reproduce

Question 17

When do you need goggles?

Answer 17

Heating a liquid in a beaker with a hot plate, or using chemicals.

Question 18

When do you need an apron?

Answer 18

Using chemicals

Question 19

When do you need gloves

Answer 19

When handling hot beakers or test tubes.

Question 20

Muscular/skeletal system work together

Answer 20

Provide movement for the body

Question 21

Respiratory/circulatory system work together?

Answer 21

Deliver oxygen and get rid of carbon dioxide.

Question 22

Photosynthesis formula

Answer 22

CO2+H2O=O2+C6H12O6

Carbon dioxide + water = oxygen + glucose

Question 23

What is biomass?

Answer 23

Fuel that is developed from organic matter.

Question 24

Give three examples of decomposers that decays biomass:

Answer 24

1. ) worms
2. ) bacteria
3. ) mold

Question 25

Two examples of mechanical digestion:

Answer 25

Mouth chewing

Stomach churning

Question 26

Define natural selection.

Answer 26

The process of living through certain circumstances because of past phenotypes.

Question 27

Four tropisms:

Answer 27

Photo (light)
Gravi (gravity)
Thigmo (touch)
Hydro (water)

Question 28

Biodiversity

Answer 28

A variety of plants and animals in an area.

Question 29

What are the organic compounds in the photosynthesis formula.

Answer 29

Carbon dioxide and glucose

Question 30

What is a watershed?

Answer 30

An area of land that all the land’s water is drained here. Depends on the height of the area’s elevation.

Question 31

Three ways you can pollute a watershed:

Answer 31

Littering, polluting run-off, and acid rain.

Question 32

As energy is transferred in organisms, ___ of energy is used by the organism, for its daily processes. Then decomposes when the organism dies. Then ___ is transferred to the level above it?

Answer 32

10%/90%