Science Flashcards

Why do plants need sunlight?

A. To stay warm

B. To make food

C. To attract animals

D. To absorb water

Why is photosynthesis considered essential for life on Earth?

Which of the following is an example of indirect sunlight?

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

Which of the following are considered consumers in an ecosystem?

How can invasive species affect ecosystems?

A. Help native species

B. Disrupt food webs

C. Increase balance

D. Create producers

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

Which action harms a food web?

A. Recycling

B. Habitat destruction

C. Reforestation

D. Conservation

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

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

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

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

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

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

Which action helps conserve resources?

A. Carpooling

B. Littering

C. Wasting water

D. Overfishing

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

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

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

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

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

What is a molecule?

A. Single atom

B. Two or more atoms bonded

C. Energy

D. Solid only

Which state has a definite shape?

A. Liquid

B. Gas

C. Solid

D. Vapor

Which of the following are physical properties of matter?

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

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

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

What is the Engineering Process?