Science Vocabulary

Master science vocabulary with our observation and inference worksheet for 3rd grade!

Connect each word to the matching definition. Observe To use your senses to gather information Infer Draw a conclusion about something you observe Predict To guess what will happen Hypothesis A possible answer to a Question that can be tested to see if it is correct Variable The one thing that changes in an experiment Experiment Test done to see if a hypothesis is correct or not Read each statement. Choose whether it is an OBSERVATION (something you observe with your five senses) or an INFERENCE (draw your own conclusion about something you observe). Observation There are eight lunch buyers in our classroom today. The plant is 6 centimeters tall. There are 18 students in our class this year. The leaves outside are turning brown. Inference My grandma came into the house wearing mittens so it must be cold outside. My friend is wearing a new dress so she must have gone shopping this weekend. The boy has three cavities, so he must not have brushed his teeth. The girl is thirsty because she forgot her water bottle at home today.