Science

Question 1

What five planets were ancient observers able to see

Answer 1

Mercury,Venus,marsjupiter,saturn

Question 2

What is unique about Venus period of rotation when compared to its period of revolution

Answer 2

It is longer than it’s period of revolution

Question 4

What do we call a meteoroid that strikes a planet or moon

Answer 4

Meteorite

Question 5

What is the least dense planet in our solar system

Answer 5

Saturn

Question 6

What are dwarf planets made of

Answer 6

Water,ice,rock

Question 7

The time it takes an object to travel once around the sun is called

Answer 7

The period of revolution

Question 8

What is the special distance term was call the average distance from the earth to the sun

Answer 8

Astronomical units

Question 9

The strength of a planets gravity depends on a planets what

Answer 9

Size/mass

Question 10

Dust storms on mars can last for how long

Answer 10

For months

Question 11

What are comets made of

Answer 11

Hydrogen/helium

Question 12

Wheee is Olympus moms?what makes it unique?

Answer 12

Mars

It is the largest volcano in the dolor system

Question 13

The sun and the group of objects that more about it are called

Answer 13

Solar system

Question 14

What do we call the solid inner part of a comet

Answer 14

Nucleus

Question 15

What are pilot ice caps on mars made out of

Answer 15

Dry ice carbon dioxides

Question 16

The sun is a

Answer 16

Star

Question 17

What are the 4 main types of objects that orbit around the sun

Answer 17

5 dwarf planets
Asteroids
3 trillion comets
Icy body’s

Question 18

More than 80% of Venus is covered by

Answer 18

Solificed lava

Question 19

What is s the largest planet in the dolor system

Answer 19

Jupiter

Question 20

Explain the difference between a period of revolution and a period of rotation

Answer 20

Period of revolution-travels once around the solar system

Period of rotation- the time it take an object to complete one rotation

Question 22

Contrast comets and asteroids

Answer 22

Comets-have thick layers of ice and dust and are farther from the sun

Asteroids- made of metal and solid material/ solid surfaces orbit closer to the sun

Question 23

Explain why Pluto was changed from a planet to a dwarf planet

Answer 23

It is a large member of the kuiper belt

Question 24

What is the scientific method?

Answer 24

A systematic process for experimentation that is used to explore observations and answer questions.

Question 25

True or False: The hypothesis is a definitive answer to a scientific question.

Answer 25

False

Question 26

Fill in the blank: The variable that is changed in an experiment is called the __________ variable.

Answer 26

independent

Question 27

What is the purpose of a control group in an experiment?

Answer 27

To provide a baseline for comparison against the experimental group.

Question 28

Multiple Choice: Which of the following is not a characteristic of living organisms? A) Growth B) Reproduction C) Inability to adapt D) Response to stimuli

Answer 28

C) Inability to adapt

Question 29

What is the chemical formula for water?

Answer 29

H2O

Question 30

True or False: All cells contain a nucleus.

Answer 30

False

Question 31

What is photosynthesis?

Answer 31

The process by which green plants use sunlight to synthesize foods with the help of chlorophyll.

Question 32

Fill in the blank: In an ecosystem, __________ are organisms that produce their own food.

Answer 32

producers

Question 33

Multiple Choice: Which gas is most abundant in the Earth's atmosphere? A) Oxygen B) Nitrogen C) Carbon Dioxide D) Argon

Answer 33

B) Nitrogen

Question 34

What is the primary function of red blood cells?

Answer 34

To transport oxygen throughout the body.

Question 35

True or False: The pH scale measures the acidity or alkalinity of a solution.

Answer 35

True

Question 36

What is the basic unit of life?

Answer 36

The cell.

Question 37

Fill in the blank: The force that attracts objects towards the center of the Earth is called __________.

Answer 37

gravity

Question 38

Multiple Choice: Which of the following is an example of a renewable resource? A) Coal B) Natural Gas C) Solar Energy D) Oil

Answer 38

C) Solar Energy

Question 39

What are the three states of matter?

Answer 39

Solid, liquid, and gas.

Question 40

True or False: DNA is composed of amino acids.

Answer 40

False

Question 41

What is the main function of the large intestine?

Answer 41

To absorb water and electrolytes from indigestible food matter.

Question 42

Fill in the blank: The __________ system is responsible for transporting blood throughout the body.

Answer 42

circulatory

Question 43

Multiple Choice: Which planet is known as the Red Planet? A) Earth B) Venus C) Mars D) Jupiter

Answer 43

C) Mars

Question 44

What is the process by which a liquid turns into a gas called?

Answer 44

Evaporation.

Question 45

True or False: Electrons have a positive charge.

Answer 45

False

Question 46

What type of bond involves the sharing of electron pairs between atoms?

Answer 46

Covalent bond.

Question 47

Fill in the blank: __________ energy is the energy possessed by an object due to its motion.

Answer 47

Kinetic

Question 48

Multiple Choice: What is the powerhouse of the cell? A) Nucleus B) Mitochondria C) Ribosome D) Endoplasmic Reticulum

Answer 48

B) Mitochondria

Question 49

What is the law of conservation of mass?

Answer 49

Matter cannot be created or destroyed in a chemical reaction.

Question 50

True or False: The Earth revolves around the Sun in an elliptical orbit.

Answer 50

True