4th Grade Science PSSA Prep

Front

Over the past hundred years, people have built new and better roads in Pennsylvania. What is one possible negative effect of this technology?

Back

Wildlife habitats are separated into smaller areas.

Front

Which change occurred between January 1 and May 1?

Back

The amount of daylight increased.

Front

A student wants to measure the depth of each snowfall in January. Which tools are most helpful for gathering and recording the data?

Back

meterstick and calendar

Front

A student wants to compare how long a flashlight will continue to shine using different brands of batteries. How can the student make sure that the test is fair? Options: Test the same brand of batteries in two flashlights. Test each brand of batteries in the same flashlight. Test different sizes of batteries in the same flashlight. Test whether some flashlights can work with only one battery.

Back

Test each brand of batteries in the same flashlight.

Front

Name the variable that matches the definition: 1 thing/step that can change in your experiment

Back

Independent

Front

Name the variable that matches the definition: What you are measuring

Back

Dependent

Front

Name the variable that matches the definition: The things/steps that stay the same

Back

Controlled

Front

When will the merganser ducks most likely arrive at the lake in year 5? Options: February 15 to 22, around February 15, mid-April to late April, late February to mid-March

Back

late February to mid-March

Front

Give an example of a system that is partly natural and partly human-made? Options: a pen that writes in blue ink, a tree that produces edible fruit, a mountain that erodes over time, a coral reef that grows on old train cars

Back

a coral reef that grows on old train cars

Front

A student described human-made systems and natural systems. Which characteristic was most likely used to describe both systems?

Back

has multiple parts