Science Flashcards

Multiple Choice

Why do plants need sunlight?

A. To stay warm

B. To make food

C. To attract animals

D. To absorb water

• a

• b

• c

• d

Multiple Choice

Why is photosynthesis considered essential for life on Earth?

• Because it produces oxygen and food for living organisms

• Because it uses up all the sunlight

• Because it only benefits plants

• Because it creates carbon dioxide

Multiple Choice

Which of the following is an example of indirect sunlight?

• A plant under a lamp

• Sunlight reaching underwater plants

• A plant in total darkness

• A plant in a closed box

Multiple Choice

Why can plants grow under artificial light?

A. It replaces water

B. It provides energy for photosynthesis

C. Plants prefer darkness

D. It changes soil

• a

• b

• c

• d

Open Ended

Name three types of biomes shown in the image and describe one characteristic of each.

Multiple Select

Which of the following are considered consumers in an ecosystem?

• Grass

• Rabbit

• Mushroom

• Cow

Multiple Choice

How can invasive species affect ecosystems?

A. Help native species

B. Disrupt food webs

C. Increase balance

D. Create producers

• a

• b

• c

• d

Multiple Choice

What happens when one species is removed from a food web?

A. No effect

B. Ecosystem balance may change

C. Only plants are affected

D. Decomposers disappear

• a

• b

• c

• d

Multiple Choice

Which action harms a food web?

A. Recycling

B. Habitat destruction

C. Reforestation

D. Conservation

• a

• b

• c

• d

Fill in the Blanks

The planet closest to the Sun in our solar system is

.

Fill in the Blanks

Why does Sun look bigger than other stars?

Multiple Choice

Which of the following is the correct order of the moon phases as seen from Earth?

• New, Waxing Crescent, First Quarter, Waxing Gibbous, Full, Waning Gibbous, Last Quarter, Waning Crescent, New

• Full, New, Waxing Crescent, First Quarter, Waxing Gibbous, Last Quarter, Waning Crescent, Waning Gibbous, New

• New, First Quarter, Waxing Crescent, Full, Waxing Gibbous, Last Quarter, Waning Crescent, Waning Gibbous, New

• New, Waxing Crescent, Full, First Quarter, Waxing Gibbous, Last Quarter, Waning Crescent, Waning Gibbous, New

Multiple Choice

When does a solar eclipse occur?

A. Earth between Sun and Moon

B. Moon between Earth and Sun

C. Sun between Earth and Moon

D. Stars block Sun

• a

• b

• c

• d

Multiple Choice

Which of the following constellations are visible year-round in the northern hemisphere?

• Ursa Major and Ursa Minor

• Orion and Taurus

• Leo and Pegasus

• Lyra and Scorpius

Multiple Choice

During which season is the Earth closest to the Sun in the northern hemisphere?

• Winter

• Spring

• Summer

• Fall

Multiple Choice

The model of the solar system with the Sun at the center is called the ___ model.

• Heliocentric

• Geocentric

Multiple Choice

Which tool is used to measure the angle between two visible objects, often for navigation at sea?

• Telescope

• Compass

• Sextant

• Star Chart

Multiple Choice

Which action helps conserve resources?

A. Carpooling

B. Littering

C. Wasting water

D. Overfishing

• a

• b

• c

• d

Multiple Choice

What should people do to prepare for natural disasters?

A. Ignore warnings

B. Make an emergency plan

C. Move closer

D. Wait until it happens

• a

• b

• c

• d

Multiple Choice

If there is a big mass, it would need a stronger force to accelerate it. Which law does this describe?

• 3rd law

• 1st law

• 2nd law

Multiple Choice

What happens to the force of gravity between two objects if the mass of one object increases?

• The force of gravity between them decreases.

• The force of gravity between them stays the same.

• The force of gravity between them increases.

• The force of gravity between them is not affected by mass.

Multiple Choice

What does this graph represent?

• Constant speed
• Acceleration
• Not moving

Multiple Choice

• Contact Force

• Non contact Force

Multiple Choice

What is the net force?

• 30 N 
• 25 N 
• 5 N 
• 55 N 

Multiple Choice

When a roller coaster is at the top of a hill it has

• high potential energy

• high kinetic energy

• low potential energy

• equal amounts of kinetic and potential energy

Multiple Choice

A car is driving on a wet road. Explain how the friction between the tires and the road is affected.

• Friction increases, making it easier to stop.

• Friction decreases, making it harder to stop.

• Friction remains the same.

• Friction only affects the car's speed.

Multiple Choice

What is a molecule?

A. Single atom

B. Two or more atoms bonded

C. Energy

D. Solid only

• a

• b

• c

• d

Multiple Choice

Which state has a definite shape?

A. Liquid

B. Gas

C. Solid

D. Vapor

• a

• b

• c

• d

Multiple Select

Which of the following are physical properties of matter?

• Density

• Boiling point

• Solubility

• All of the above

Fill in the Blanks

Objects that are less dense than water will

on water.

Open Ended

Why does the shape of a tin foil boat affect how many pennies it can hold before sinking?

Multiple Choice

Which of the following is a key difference between mixtures and solutions?

• Mixtures always have a fixed ratio of substances, while solutions do not.

• Mixtures can only be homogeneous, while solutions can be heterogeneous.

• Mixtures retain the properties of their components, while solutions often result in a chemical change.

• Mixtures are always drinks and beverages, while solutions are always salads.

Fill in the Blanks

In a saltwater solution, the solvent is ___ and the solute is ___.

Multiple Select

Which of the following factors will increase the rate of dissolution of a solute in a solvent? Select all that apply.

• Stirring the solution

• Decreasing the temperature

• Using larger solute particles

• Using a smaller amount of solute

Multiple Choice

An ice pack getting cold after you put it in the freezer for an hour is a

• chemical Change

• physical Change

Multiple Choice

Is wood burning a physical or chemical change?

• Physical 
• Chemical

Multiple Choice

What is the Engineering Process?

• A series of steps used to help solve problems or people who are facing challenges.

• A series of steps used to break things down that are working properly.

• A series of questions that make you think harder about life.

• The steps we use to do science things in class.