What are all living things, like plants and animals, made of?

Which tool do scientists use to see tiny cells that are too small for our eyes to see on their own?

What is the name of the thin outer layer that holds a cell together and controls what goes in and out?

Which part of the cell acts like the 'brain' or control center, telling the cell what to do?

What is the jelly-like substance that fills the inside of a cell and holds all the other parts in place?

Which of these is a major difference between a plant cell and an animal cell?

What tiny green parts inside plant cells help the plant make its own food from sunlight?

If a plant cell is shaped like a sturdy box, what is the most likely shape of an animal cell?

What happens when a living thing grows bigger?

Groups of many cells that work together to do the same job are called what?

Which of these is a non-renewable resource that we dig up from the ground to make energy?

Which layer of the Earth is the thin, outer surface where plants grow and animals live?

Which of these is most likely to cause a slow change to the Earth's surface over many years?

Which type of soil is usually dark, moist, and contains the most nutrients for helping plants grow?

What happens when wind or water moves pieces of rock and soil from one place to another?

Which tool would a scientist use to measure the temperature of the air outside?

Which type of rock is formed when very hot, melted rock from inside the Earth cools down and hardens?

Which phase of the water cycle happens when the sun heats up water in oceans and turns it into invisible gas called water vapor?

Which of these is most likely to cause a fast change to the Earth's surface?

Which of the following is an example of precipitation?