Discover the Basic Steps of Scientific Investigation!

When you are curious about something, you can investigate it like a scientist! A scientific investigation is a set of steps you follow to find answers to your questions.

Scientists all over the world use these same steps. You can use them too, starting right now! Learn more about Problem Solving as you explore how science works.

Every investigation starts with a question! When you notice something interesting, you ask a question about it.

For example, you might ask, "Do plants grow better in light or darkness?" or "Why do puddles disappear on warm days?" A good question helps you know exactly what you want to find out. This connects to your learning about Question Formation, where you practice asking questions about your observations.

After you ask your question, you make a guess about what you think will happen. Scientists call this guess a hypothesis.

For example, you might guess, "I think plants grow better in light." Your hypothesis gives you something to test!

Now you test your hypothesis! You set up an experiment and watch carefully. Using your senses to look, listen, and notice things is called observing.

You already practiced this in Observation Skills, where you used your senses to describe objects. Good observing helps you collect the best information.

While you observe and experiment, you write down or draw what you see. The information you collect is called data.

Data can be measurements, drawings, or notes about what happened. Writing things down helps you remember and find patterns. You will explore this more in Data Collection, where you learn to record observations in an organized way.

The last step is to tell others what you discovered! Scientists always share their results so everyone can learn something new.

You can draw a picture, tell a friend, or show your class what you found out. Sharing your discoveries is an important part of being a scientist!

Scientific Investigation: A scientific investigation is a set of steps you follow to find the answer to a question you have about the world.

Question: A question is what you ask when you want to find out about something. In science, you always start with a question, like "Why do leaves change color?"

Hypothesis: A hypothesis is your best guess about what you think will happen before you test it. For example, "I think the marble will roll faster on a smooth surface."

Observe: To observe means to use your senses to look carefully at something and notice details. When you watch a butterfly or feel a rock, you are observing.

Experiment: An experiment is a test you do to find out if your hypothesis is correct. You set up conditions and watch what happens.

Data: Data is the information you collect during your investigation. It can be numbers, drawings, or notes about what you saw.

Results: Results are what happened during your experiment. You share your results so others can learn from your investigation.

Try your own investigation at home or at school! Pick something you are curious about, like "Which surface makes a marble roll fastest?" or "How much water does my plant need?"

Follow the steps: ask a question, make a hypothesis, observe, collect data, and share what you learned. You can use Scientific Tools like rulers to help you measure, and always remember to follow Safety Procedures when you investigate.

You are ready for this topic because you already learned some important skills! You practiced Observation Skills using your senses, learned about Basic Measurements like comparing size and weight, and explored Question Formation by asking questions about what you see. You also learned about the Design Process for solving simple problems.

After this topic, you will be ready to learn even more! You will explore Investigation Design to plan your own experiments, practice Developing Testable Questions, learn about Data Recording using tables and charts, and discover Drawing Conclusions from your evidence. You will also build on your skills in the Design Process to identify and solve bigger problems.

These topics connect closely to what you are learning about scientific investigation. Data Collection teaches you how to record your observations in an organized way, which is exactly what you do in Step 4 of your investigation.

Safety Procedures helps you stay safe when you use tools and do experiments. Problem Solving connects to your investigation steps because you use science to identify problems and test solutions. You will also use Scientific Tools like rulers and magnifying glasses to help you observe and measure during your investigations.