diff --git a/Lib/test/mime.types b/Lib/test/mime.types
index 6872443..eb39a17 100644
--- a/Lib/test/mime.types
+++ b/Lib/test/mime.types
@@ -1,11 +1,11 @@
 # This is a comment. I love comments.		    -*- indent-tabs-mode: t -*-
 
-# This file controls what Internet media types are sent to the client for
+# This file controls what internet media types are sent to the client for
 # given file extension(s).  Sending the correct media type to the client
 # is important so they know how to handle the content of the file.
 # Extra types can either be added here or by using an AddType directive
-# in your config files. For more information about Internet media types,
-# please read RFC 2045, 2046, 2047, 2048, and 2077.  The Internet media type
+# in your config files. For more information about internet media types,
+# please read RFC 2045, 2046, 2047, 2048, and 2077.  The internet media type
 # registry is at <http://www.iana.org/assignments/media-types/>.
 
 # IANA types
diff --git a/Lib/test/support/__init__.py b/Lib/test/support/__init__.py
index 942d1f7..4a2ed1e 100644
--- a/Lib/test/support/__init__.py
+++ b/Lib/test/support/__init__.py
@@ -74,8 +74,8 @@
 elif sys.platform == 'vxworks':
     LOOPBACK_TIMEOUT = 10
 
-# Timeout in seconds for network requests going to the Internet. The timeout is
-# short enough to prevent a test to wait for too long if the Internet request
+# Timeout in seconds for network requests going to the internet. The timeout is
+# short enough to prevent a test to wait for too long if the internet request
 # is blocked for whatever reason.
 #
 # Usually, a timeout using INTERNET_TIMEOUT should not mark a test as failed,
diff --git a/Lib/test/support/socket_helper.py b/Lib/test/support/socket_helper.py
index e78712b..b516773 100644
--- a/Lib/test/support/socket_helper.py
+++ b/Lib/test/support/socket_helper.py
@@ -189,7 +189,7 @@ def get_socket_conn_refused_errs():
 @contextlib.contextmanager
 def transient_internet(resource_name, *, timeout=_NOT_SET, errnos=()):
     """Return a context manager that raises ResourceDenied when various issues
-    with the Internet connection manifest themselves as exceptions."""
+    with the internet connection manifest themselves as exceptions."""
     import nntplib
     import urllib.error
     if timeout is _NOT_SET:
diff --git a/Lib/test/test_logging.py b/Lib/test/test_logging.py
index 0cc1fc4..5794b75 100644
--- a/Lib/test/test_logging.py
+++ b/Lib/test/test_logging.py
@@ -891,7 +891,7 @@ class ControlMixin(object):
                     single parameter - the request - in order to
                     process the request. This handler is called on the
                     server thread, effectively meaning that requests are
-                    processed serially. While not quite Web scale ;-),
+                    processed serially. While not quite web scale ;-),
                     this should be fine for testing applications.
     :param poll_interval: The polling interval in seconds.
     """
diff --git a/Lib/test/test_ssl.py b/Lib/test/test_ssl.py
index e523634..f4a8470 100644
--- a/Lib/test/test_ssl.py
+++ b/Lib/test/test_ssl.py
@@ -65,7 +65,7 @@ def data_file(*name):
 
 # The custom key and certificate files used in test_ssl are generated
 # using Lib/test/make_ssl_certs.py.
-# Other certificates are simply fetched from the Internet servers they
+# Other certificates are simply fetched from the internet servers they
 # are meant to authenticate.
 
 CERTFILE = data_file("keycert.pem")
diff --git a/Lib/test/test_urllib2net.py b/Lib/test/test_urllib2net.py
index 4750ad9..aa41811 100644
--- a/Lib/test/test_urllib2net.py
+++ b/Lib/test/test_urllib2net.py
@@ -67,7 +67,7 @@ def __exit__(self, type_=None, value=None, traceback=None):
                 raise ResourceDenied("an optional resource is not available")
 
 # Context managers that raise ResourceDenied when various issues
-# with the Internet connection manifest themselves as exceptions.
+# with the internet connection manifest themselves as exceptions.
 # XXX deprecate these and use transient_internet() instead
 time_out = TransientResource(OSError, errno=errno.ETIMEDOUT)
 socket_peer_reset = TransientResource(OSError, errno=errno.ECONNRESET)